Have tried the various things suggested, but it is still lagging intermittently, sometimes hanging fire for a couple of minutes while the wheel spins. Have run Etrecheck and this is the report:
EtreCheck version: 2.2 (132)
Report generated 5/3/15, 4:42 PM
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
MacBook Pro (Retina, 13-inch, Late 2013) (Technical Specifications)
MacBook Pro - model: MacBookPro11,1
1 2.6 GHz Intel Core i5 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Battery: Health = Normal - Cycle count = 33 - SN = C01407709G5FVN8AD
Video Information: ℹ️
Intel Iris
Thunderbolt Display 1600 x 900
System Software: ℹ️
OS X 10.10.3 (14D136) - Time since boot: one day 7:16:10
Disk Information: ℹ️
APPLE SSD SM1024F disk0 : (1 TB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
[redacted] (disk1) / : 999.32 GB (226.84 GB free)
Core Storage: disk0s2 999.70 GB Online
USB Information: ℹ️
Mitsumi Electric Hub in Apple Extended USB Keyboard
Logitech USB Receiver
Mitsumi Electric Apple Extended USB Keyboard
Apple Inc. FaceTime HD Camera (Display)
Apple Inc. Display Audio
Apple Inc. Apple Thunderbolt Display
Apple Internal Memory Card Reader
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. Apple Internal Keyboard / Trackpad
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt Display
Apple Inc. Thunderbolt to FireWire Adapter
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[loaded] com.avira.kext.FileAccessControl (1.0.0d1 - SDK 10.9) [Click for support]
[not loaded] com.devguru.driver.SamsungComposite (1.4.27 - SDK 10.6) [Click for support]
/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns
[not loaded] com.devguru.driver.SamsungACMControl (1.4.27 - SDK 10.6) [Click for support]
[not loaded] com.devguru.driver.SamsungACMData (1.4.27 - SDK 10.6) [Click for support]
[not loaded] com.devguru.driver.SamsungMTP (1.4.27 - SDK 10.5) [Click for support]
[not loaded] com.devguru.driver.SamsungSerial (1.4.27 - SDK 10.6) [Click for support]
/Users/[redacted]/Applications/Magican.app
[not loaded] com.magican.iokit.filemon (1 - SDK 10.7) [Click for support]
[not loaded] com.magican.iokit.netmon (1 - SDK 10.7) [Click for support]
/Users/[redacted]/Documents/rodewins/Library/Services/ToastIt.service/Contents/ MacOS
[not loaded] com.roxio.TDIXController (2.0) [Click for support]
/Users/[redacted]/OSX Installers/Toast 10 Titanium/Toast 10 Titanium/Toast Titanium.app
[not loaded] com.roxio.BluRaySupport (1.1.6) [Click for support]
Launch Agents: ℹ️
[not loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.avira.antivirus.ipm.ui.plist [Click for support]
[failed] com.avira.antivirus.notifications.agent.plist [Click for support]
[running] com.avira.antivirus.odscan.default.plist [Click for support]
[loaded] com.avira.antivirus.scheduler.agent.plist [Click for support]
[running] com.avira.antivirus.systray.plist [Click for support]
[loaded] com.avira.antivirus.telemetry.agent.plist [Click for support]
[loaded] com.avira.antivirus.update.default.plist [Click for support]
[loaded] org.glimmerblocker.updater.plist [Click for support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.adobe.SwitchBoard.plist [Click for support]
[failed] com.avira.antivirus.dbcleaner.plist [Click for support]
[loaded] com.avira.antivirus.ipm.loader.plist [Click for support]
[running] com.avira.helper.watchdox.plist [Click for support]
[loaded] com.microsoft.office.licensing.helper.plist [Click for support]
[loaded] com.westerndigital.WD-SmartWare-Installer.plist [Click for support]
[failed] org.glimmerblocker.proxy.plist [Click for support]
User Launch Agents: ℹ️
[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]
[loaded] com.adobe.ARM.[...].plist [Click for support]
[running] com.crossrider.wss002455.agent.plist [Click for support]
[loaded] com.google.keystone.agent.plist [Click for support]
[failed] com.jdibackup.ZipCloud.backupstart.plist [Click for support]
[failed] com.jdibackup.ZipCloud.notify.plist [Click for support]
[unknown] shopy-mate.ver [Click for support]
[loaded] shopy-mate_updater.plist [Click for support]
[unknown] shopy-mate_updater.sh [Click for support]
[unknown] WebSocketServerApp [Click for support]
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
TuneupMyMac UNKNOWN (missing value)
WD SmartWare UNKNOWN (missing value)
K9-MacOptimizer UNKNOWN (missing value)
WDQuickView UNKNOWN (missing value)
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
AdobePDFViewer: Version: 10.1.13 [Click for support]
Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
Default Browser: Version: 600 - SDK 10.10
SharePointBrowserPlugin: Version: 14.4.9 - SDK 10.6 [Click for support]
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User internet Plug-ins: ℹ️
RealPlayer Plugin: Version: Unknown [Click for support]
Safari Extensions: ℹ️
AdBlock
Shopy mate
Franker
Ecosia - The search engine that plants trees
3rd Party Preference Panes: ℹ️
Déjà Vu [Click for support]
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
GlimmerBlocker [Click for support]
Logitech Control Center [Click for support]
Norton\nQuickMenu [Click for support]
SANE [Click for support]
StuffIt AVR [Click for support]
Wacom Tablet [Click for support]
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Marau1: Disk size: 999.32 GB Disk used: 772.48 GB
Destinations:
My Book [Local]
Total size: 3.00 TB
Total number of backups: 22
Oldest backup: 2015-01-27 13:59:54 +0000
Last backup: 2015-05-01 08:57:14 +0000
Size of backup disk: Excellent
Backup size 3.00 TB > (Disk size 999.32 GB X 3)
Top Processes by CPU: ℹ️
95% savapi
4% avguard-ondemand-mgmt(2)
2% WindowServer
1% AV_Scheduler
1% avbackendproxy worker (avguard-ondemand)(2)
Top Processes by Memory: ℹ️
734 MB kernel_task
459 MB Google Chrome Helper(6)
442 MB softwareupdated
377 MB savapi
328 MB avguard.bin
Virtual Memory Information: ℹ️
44 MB Free RAM
7.96 GB Used RAM
0 B Swap Used
Diagnostics Information: ℹ️
May 2, 2015, 09:26:33 AM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-02-092633_[redacted].crash
May 2, 2015, 09:26:31 AM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-02-092631_[redacted].crash
May 2, 2015, 09:26:19 AM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-02-092619_[redacted].crash
May 2, 2015, 09:25:33 AM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-02-092533_[redacted].crash
May 2, 2015, 09:25:32 AM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-02-092532_[redacted].crash
May 2, 2015, 09:25:09 AM Self test - passed
May 1, 2015, 03:31:34 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153134_[redacted].crash
May 1, 2015, 03:31:32 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153132_[redacted].crash
May 1, 2015, 03:31:22 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153122_[redacted].crash
May 1, 2015, 03:30:37 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153037_[redacted].crash
May 1, 2015, 03:30:34 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153034_[redacted].crash
May 1, 2015, 03:30:17 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153017_[redacted].crash
May 1, 2015, 03:30:05 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153005_[redacted].crash
May 1, 2015, 03:30:02 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-153002_[redacted].crash
May 1, 2015, 03:29:55 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152955_[redacted].crash
May 1, 2015, 03:29:09 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152909_[redacted].crash
May 1, 2015, 03:29:06 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152906_[redacted].crash
May 1, 2015, 03:28:48 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152848_[redacted].crash
May 1, 2015, 03:28:38 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152838_[redacted].crash
May 1, 2015, 03:28:36 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152836_[redacted].crash
May 1, 2015, 03:28:28 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-152828_[redacted].crash
May 1, 2015, 12:17:36 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121736_[redacted].crash
May 1, 2015, 12:16:50 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121650_[redacted].crash
May 1, 2015, 12:16:48 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121648_[redacted].crash
May 1, 2015, 12:16:31 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121631_[redacted].crash
May 1, 2015, 12:16:21 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121621_[redacted].crash
May 1, 2015, 12:16:19 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121619_[redacted].crash
May 1, 2015, 12:16:01 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121601_[redacted].crash
May 1, 2015, 12:15:50 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121550_[redacted].crash
May 1, 2015, 12:15:48 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121548_[redacted].crash
May 1, 2015, 12:15:31 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121531_[redacted].crash
May 1, 2015, 12:15:21 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121521_[redacted].crash
May 1, 2015, 12:15:18 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121518_[redacted].crash
May 1, 2015, 12:15:09 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121509_[redacted].crash
May 1, 2015, 12:14:23 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121423_[redacted].crash
May 1, 2015, 12:14:21 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121421_[redacted].crash
May 1, 2015, 12:14:03 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121403_[redacted].crash
May 1, 2015, 12:13:52 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121352_[redacted].crash
May 1, 2015, 12:13:50 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121350_[redacted].crash
May 1, 2015, 12:13:41 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121341_[redacted].crash
May 1, 2015, 12:12:54 PM /Library/Logs/DiagnosticReports/avlogwriter_2015-05-01-121254_[redacted].crash