Here's the etrecheck report. Looks like some issues but I don't know enough about all of this.
EtreCheck version: 2.9.13 (267)
Report generated 2016-08-08 11:20:42
Download EtreCheck from https://etrecheck.com
Runtime 15:59
Performance: Poor
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Beachballing
Description:
Computer running slow during startup and beachballing on any action with finder. Many apps fail to launch others take minutes to launch. Have done SCM reset, cleared Mail logs, booted in safemode. Issues persist.
Hardware Information: ⓘ
21.5" iMac (Late 2012)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac13,1
1 2.9 GHz Intel Core i5 CPU: 4-core
16 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
8 GB DDR3 1600 MHz ok
BANK 1/DIMM0
8 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ⓘ
NVIDIA GeForce GT 650M - VRAM: 512 MB
iMac 1920 x 1080
System Software: ⓘ
OS X Yosemite 10.10.5 (14F27) - Time since boot: less than an hour
Disk Information: ⓘ
APPLE HDD ST1000LM024 disk0 : (1 TB) (Rotational)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 999.35 GB (744.37 GB free) - 159 errors
Drive failure!
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ⓘ
Logitech Trackball
Logitech USB Keyboard
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Configuration files: ⓘ
/etc/sysctl.conf - File exists but not expected
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/Library/Extensions
[loaded] com.intel.kext.intelhaxm (6.0.1 - SDK 10.9 - 2016-08-07) [Support]
/System/Library/Extensions
[not loaded] com.leapfrog.codeless.kext (2.0 - 2016-08-07) [Support]
[not loaded] com.leapfrog.driver.LfConnectDriver (1.12.0 - SDK 10.10 - 2016-08-07) [Support]
System Launch Agents: ⓘ
[not loaded] 6 Apple tasks
[loaded] 150 Apple tasks
[running] 56 Apple tasks
System Launch Daemons: ⓘ
[failed] org.apache.httpd.plist
[not loaded] 46 Apple tasks
[loaded] 142 Apple tasks
[running] 75 Apple tasks
Launch Agents: ⓘ
[not loaded] com.adobe.AAM.Updater-1.0.plist (2016-06-13) [Support]
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist (2016-07-11) [Support]
[running] com.adobe.AdobeCreativeCloud.plist (2016-05-05) [Support]
[running] com.avg.Antivirus.gui.plist (2015-04-20) [Support]
[loaded] com.google.keystone.agent.plist (2016-07-11) [Support]
[loaded] com.oracle.java.Java-Updater.plist (2014-03-16) [Support]
Launch Daemons: ⓘ
[loaded] co.echo.httpdfwd.plist (2016-05-23) [Support]
[running] com.adobe.ARM.[...].plist (2014-12-19) [Support]
[loaded] com.adobe.ARMDC.Communicator.plist (2016-07-11) [Support]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (2016-07-11) [Support]
[loaded] com.adobe.SwitchBoard.plist (2013-03-23) [Support]
[running] com.adobe.adobeupdatedaemon.plist (2016-06-13) [Support]
[loaded] com.adobe.agsservice.plist (2015-12-31) [Support]
[loaded] com.adobe.fpsaud.plist (2016-06-28) [Support]
[loaded] com.avg.Antivirus.crashpad.plist (2015-09-16) [Support]
[running] com.avg.Antivirus.infosd.plist (2015-04-20) [Support]
[running] com.avg.Antivirus.services.plist (2015-04-20) [Support]
[loaded] com.google.keystone.daemon.plist (2016-07-11) [Support]
[loaded] com.intel.haxm.plist (2015-11-15) [Support]
[loaded] com.macpaw.CleanMyMac3.Agent.plist (2016-06-24) [Support]
[loaded] com.macromates.auth_server.plist (2016-05-23) [Support]
[loaded] com.malwarebytes.MBAMHelperTool.plist (2015-12-30) [Support]
[loaded] com.microsoft.autoupdate.helpertool.plist (2016-06-16) [Support]
[loaded] com.microsoft.office.licensingV2.helper.plist (2016-04-11) [Support]
[loaded] com.oracle.java.Helper-Tool.plist (2014-03-16) [Support]
[running] homebrew.mxcl.dnsmasq.plist (2016-05-23) [Support]
User Launch Agents: ⓘ
[loaded] com.adobe.AAM.Updater-1.0.plist (2013-03-23) [Support]
[running] com.leapfrog.connect.monitor.plist (2015-10-16) [Support]
[running] com.leapfrog.connect2.lflauncher.plist (2014-12-25) [Support]
[loaded] com.macpaw.CleanMyMac3.Scheduler.plist (2016-06-24) [Support]
[loaded] com.valvesoftware.steamclean.plist (2016-03-16) [Support]
[not loaded] homebrew.mxcl.mysql.plist [Support]
[not loaded] org.virtualbox.vboxwebsrv.plist (2014-01-26) [Support]
User Login Items: ⓘ
Caffeine Application (/Applications/Caffeine.app)
AdobeResourceSynchronizer Application (/Applications/Adobe Acrobat DC/Adobe Acrobat.app/Contents/Helpers/AdobeResourceSynchronizer.app)
Other Apps: ⓘ
[running] com.adobe.CCXProcess.51152
[running] com.adobe.acc.AdobeDesktopService.238024.8AAE0D70-A03C-49EE-8B4A-14F22D5FCD0C
[running] com.adobe.accmac.10256
[running] com.google.Chrome.58820
[running] com.lightheadsw.caffeine.54560
[loaded] 385 Apple tasks
[running] 166 Apple tasks
Internet Plug-ins: ⓘ
JavaAppletPlugin: Java 8 Update 101 build 13 (2016-08-03) Check version
o1dbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-16) [Support]
Autodesk123D64: Autodesk123D64 1.0.8 - SDK 10.7 (2013-10-08) [Support]
Unity Web Player: UnityPlayer version 5.0.3f2 - SDK 10.6 (2016-06-05) [Support]
Default Browser: 600 - SDK 10.10 (2015-10-31)
AdobeExManDetect: AdobeExManDetect 1.1.0.0 - SDK 10.7 (2014-09-24) [Support]
AmazonMP3DownloaderPlugin101750: AmazonMP3DownloaderPlugin 1.0.17 - SDK 10.4 (2013-08-25) [Support]
AdobeAAMDetect: 3.0.0.0 - SDK 10.9 (2016-06-13) [Support]
AdobePDFViewerNPAPI: 15.017.20053 - SDK 10.11 (2016-08-05) [Support]
FlashPlayer-10.6: 22.0.0.209 - SDK 10.9 (2016-07-29) [Support]
Silverlight: 5.1.41212.0 - SDK 10.6 (2016-03-10) [Support]
Flash Player: 22.0.0.209 - SDK 10.9 (2016-07-29) [Support]
QuickTime Plugin: 7.7.3 (2015-10-31)
googletalkbrowserplugin: 5.41.3.0 - SDK 10.8 (2015-12-11) [Support]
AdobePDFViewer: 15.017.20053 - SDK 10.11 (2016-08-05) [Support]
DirectorShockwave: 12.1.0r150 - SDK 10.6 (2014-03-10) [Support]
User internet Plug-ins: ⓘ
Autodesk123DShapes64: Autodesk123DShapes64 1.0.129 - SDK 10.7 (2014-01-12) [Support]
npNASAEyes: NASAEyes_x86_64 1.0.0.0 - SDK 10.6 (2013-09-07) [Support]
Google Earth Web Plug-in: 7.1 (2013-10-07) [Support]
NPRoblox: 1, 2, 8, 25 - SDK 10.11 (2016-07-27) [Support]
3rd Party Preference Panes: ⓘ
Flash Player (2016-06-28) [Support]
Java (2016-08-03) [Support]
LaunchRocket (2014-09-19) [Support]
MySQL (2016-03-28) [Support]
Time Machine: ⓘ
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 999.35 GB Disk used: 254.97 GB
Destinations:
Ionad-tasgaidh [Network]
Total size: 2.00 TB
Total number of backups: 198
Oldest backup: 3/23/13, 19:20 PM
Last backup: 7/17/16, 19:38 PM
Size of backup disk: Adequate
Backup size 2.00 TB > (Disk used 254.97 GB X 3)
Top Processes by CPU: ⓘ
38% AdobeGCClient
28% codesign
1% avgscand
1% Creative Cloud
1% kernel_task
Top Processes by Memory: ⓘ
956 MB kernel_task
590 MB mdworker(15)
459 MB Google Chrome Helper(6)
279 MB avgscand
164 MB mds_stores
Virtual Memory Information: ⓘ
3.60 GB Free RAM
12.00 GB Used RAM (7.62 GB Cached)
0 B Swap Used
Diagnostics Information: ⓘ
Aug 8, 2016, 10:37:18 AM Self test - passed
Aug 7, 2016, 09:21:42 PM ~/Library/Logs/DiagnosticReports/Creative Cloud_2016-08-07-212142_[redacted].crash
com.adobe.acc.AdobeCreativeCloud - /Applications/Utilities/Adobe Creative Cloud/*/Creative Cloud.app/Contents/MacOS/Creative Cloud
Aug 7, 2016, 06:40:51 PM ~/Library/Logs/DiagnosticReports/fontd_2016-08-07-184051_[redacted].crash
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Support/fontd
Aug 6, 2016, 10:43:13 AM /Library/Logs/DiagnosticReports/SophosMcsAgentD_2016-08-06-104313_[redacted].cr ash
/Library/Sophos Anti-Virus/SophosMcsAgentD.bundle/Contents/MacOS/SophosMcsAgentD