Thank you. I did open Activity Monitor but don't know what you mean by this question above: " When dragging not what is using CPU?"
Here's the EntreCheck report:
EtreCheck version: 2.9.12 (265)
Report generated 2016-05-03 07:13:44
Download EtreCheck from https://etrecheck.com
Runtime 3:48
Performance: Good
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Other problem
Description:
When I drag and drop, the drop operation is a bit too slow.
Hardware Information: ⓘ
MacBook Pro (15-inch, Early 2011)
[Technical Specifications] - [User Guide] - [Warranty & Service]
MacBook Pro - model: MacBookPro8,2
1 2 GHz Intel Core i7 CPU: 4-core
4 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Battery: Health = Normal - Cycle count = 357
Video Information: ⓘ
Intel HD Graphics 3000
AMD Radeon HD 6490M - VRAM: 256 MB
Color LCD 1440 x 900
System Software: ⓘ
OS X Yosemite 10.10.5 (14F1713) - Time since boot: about 2 days
Disk Information: ⓘ
TOSHIBA MK5065GSXF disk0 : (500.11 GB) (Rotational)
EFI (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 499.25 GB (395.26 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
MATSHITADVD-R UJ-8A8 ()
USB Information: ⓘ
Apple Inc. FaceTime HD Camera (Built-in)
Western Digital My Book 1140 1 TB
EFI (disk2s1) <not mounted> : 210 MB
External Drive (disk2s2) /Volumes/External Drive : 999.83 GB (843.98 GB free)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus
Gatekeeper: ⓘ
Mac App Store and identified developers
Kernel Extensions: ⓘ
/System/Library/Extensions
[not loaded] com.devguru.driver.SamsungComposite (1.4.14 - SDK 10.6 - 2016-04-23) [Support]
[not loaded] com.joshuawise.kexts.HoRNDIS (1.0 - SDK 10.6 - 2016-04-23) [Support]
[not loaded] com.wdc.driver.1394HP (1.0.9 - 2016-04-23) [Support]
[not loaded] com.wdc.driver.USBHP (1.0.11 - 2016-04-23) [Support]
/System/Library/Extensions/ssuddrv.kext/Contents/PlugIns
[not loaded] com.devguru.driver.SamsungACMControl (1.4.14 - SDK 10.6 - 2013-09-08) [Support]
[not loaded] com.devguru.driver.SamsungACMData (1.4.14 - SDK 10.6 - 2013-09-08) [Support]
[not loaded] com.devguru.driver.SamsungMTP (1.4.14 - SDK 10.5 - 2013-09-08) [Support]
[not loaded] com.devguru.driver.SamsungSerial (1.4.14 - SDK 10.6 - 2013-09-08) [Support]
System Launch Agents: ⓘ
[not loaded] 5 Apple tasks
[loaded] 139 Apple tasks
[running] 59 Apple tasks
[killed] 9 Apple tasks
9 processes killed due to insufficient RAM
System Launch Daemons: ⓘ
[not loaded] 44 Apple tasks
[loaded] 131 Apple tasks
[running] 75 Apple tasks
[killed] 12 Apple tasks
12 processes killed due to insufficient RAM
Launch Daemons: ⓘ
[loaded] com.adobe.fpsaud.plist (2016-04-15) [Support]
User Launch Agents: ⓘ
[loaded] com.google.keystone.agent.plist (2016-03-02) [Support]
User Login Items: ⓘ
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Android File Transfer Agent Application (~/Library/Application Support/Google/Android File Transfer/Android File Transfer Agent.app)
Dropbox Application (/Applications/Dropbox.app)
fuspredownloader Application Hidden (~/Library/Application Support/.FUS/fuspredownloader.app)
HP IO Classic Proxy 2 Application Hidden (/Library/Frameworks/HPServicesInterface.framework/Versions/B/Runtime/HP IO Classic Proxy 2.app)
HP IO Classic Proxy Application Hidden (/Library/Frameworks/HPServicesInterface.framework/Versions/A/Runtime/HP IO Classic Proxy.app)
ConnectService Application (/Library/Application Support/ArcSoft/Connect Service/ConnectService.app)
Director Docker Application (/Applications/Hewlett-Packard/HP Photo and Imaging Software/HP Photo and Imaging Director/Director Docker.app)
HP Product Research Application (/Library/Application Support/Hewlett-Packard/Customer Participation/HP Product Research.app)
Other Apps: ⓘ
[running] OpenObject.fuspredownloader.42348
[running] com.getdropbox.dropbox.40360
[running] com.google.android.mtpagent.41780
[running] net.stfj.spellTower.13664
[running] org.mozilla.firefox.40644
[loaded] 350 Apple tasks
[running] 171 Apple tasks
[killed] 21 Apple tasks
Internet Plug-ins: ⓘ
FlashPlayer-10.6: 21.0.0.226 - SDK 10.6 (2016-04-30) [Support]
QuickTime Plugin: 7.7.3 (2016-03-21)
Flash Player: 21.0.0.226 - SDK 10.6 (2016-04-30) [Support]
Default Browser: 600 - SDK 10.10 (2015-08-22)
Unity Web Player: UnityPlayer version 5.3.1f1 - SDK 10.6 (2016-01-08) [Support]
Silverlight: 5.1.20913.0 - SDK 10.6 (2013-11-07) [Support]
iPhotoPhotocast: 7.0 (2012-07-02)
User internet Plug-ins: ⓘ
KickStartPlugIn64: 1.1 - SDK 10.7 (2011-11-09) [Support]
RealPlayer Plugin: Unknown
3rd Party Preference Panes: ⓘ
Flash Player (2016-04-15) [Support]
Time Machine: ⓘ
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 499.25 GB Disk used: 103.99 GB
Destinations:
External Drive [Local]
Total size: 999.83 GB
Total number of backups: 38
Oldest backup: 8/18/12, 12:36 PM
Last backup: 5/3/16, 6:45 AM
Size of backup disk: Adequate
Backup size 999.83 GB > (Disk used 103.99 GB X 3)
Top Processes by CPU: ⓘ
28% firefox
15% WindowServer
9% SpellTower
4% kernel_task
2% mdworker(17)
Top Processes by Memory: ⓘ
803 MB firefox
520 MB kernel_task
172 MB mdworker(17)
78 MB Mail
57 MB com.apple.WebKit.WebContent(2)
Virtual Memory Information: ⓘ
19 MB Free RAM
3.97 GB Used RAM (390 MB Cached)
764 MB Swap Used
Diagnostics Information: ⓘ
Apr 30, 2016, 03:53:29 PM Self test - passed