Q: Macbook Pro (mid-2012) running slow and beachballing since security update (EtreCheck report)

Thanks Eric but this did not solve the problem. Beach balling consistently when Scrolling and typing. Also takes forever to load websites. The trackpad also seems to not work as well as before the update. I ran another EtreCheck just in case)

EtreCheck version: 3.0.3 (307)

Report generated 2016-09-06 19:30:47

Download EtreCheck from https://etrecheck.com

Runtime 3:42

Performance: Good

Click the [Support] links for help with non-Apple products.

Click the [Details] links for more information about that line.

Problem: Beachballing

Description:

Downloaded security update El Capitan and now nothing but trouble. Trouble scrolling and typing without beach balling. Trackpad not working like it did before the update. Computer runs slow, takes forever to load websites.

Hardware Information: ⓘ

    MacBook Pro (13-inch, Mid 2012)

    [Technical Specifications] - [User Guide] - [Warranty & Service]

    MacBook Pro - model: MacBookPro9,2

    1 2.5 GHz Intel Core i5 CPU: 2-core

    4 GB RAM Upgradeable - [Instructions]

        BANK 0/DIMM0

            2 GB DDR3 1600 MHz ok

        BANK 1/DIMM0

            2 GB DDR3 1600 MHz ok

    Bluetooth: Good - Handoff/Airdrop2 supported

    Wireless:  en1: 802.11 a/b/g/n

    Battery: Health = Normal - Cycle count = 513

Video Information: ⓘ

    Intel HD Graphics 4000

        Color LCD 1280 x 800

System Software: ⓘ

    OS X El Capitan 10.11.6 (15G1004) - Time since boot: about 8 hours

Disk Information: ⓘ

    APPLE HDD HTS545050A7E362 disk0 : (500.11 GB) (Rotational)

        EFI (disk0s1) <not mounted> : 210 MB

        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB

        Macintosh HD (disk1) / : 498.88 GB (427.96 GB free)

            Encrypted AES-XTS Unlocked Failed

            Core Storage: disk0s2 499.25 GB Online

    HL-DT-ST DVDRW  GS41N   ()

USB Information: ⓘ

    Apple Inc. FaceTime HD Camera (Built-in)

    Apple Inc. Apple Internal Keyboard / Trackpad

    Apple Computer, Inc. IR Receiver

    Apple Inc. BRCM20702 Hub

        Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information: ⓘ

    Apple Inc. thunderbolt_bus

Gatekeeper: ⓘ

    Mac App Store and identified developers

System Launch Agents: ⓘ

    [not loaded]    7 Apple tasks

    [loaded]    154 Apple tasks

    [running]    77 Apple tasks

System Launch Daemons: ⓘ

    [not loaded]    45 Apple tasks

    [loaded]    158 Apple tasks

    [running]    87 Apple tasks

Launch Daemons: ⓘ

    [loaded]    com.adobe.fpsaud.plist (2016-06-28) [Support]

User Launch Agents: ⓘ

    [running]    com.dtv.vgconnect.plist (2016-02-15)

    [loaded]    com.dtv.vgconnect.uninstall.plist (2016-08-22)

User Login Items: ⓘ

    iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

    InfiniteHD    Application  (~/Library/Octoshape/InfiniteHD.app)

Internet Plug-ins: ⓘ

    FlashPlayer-10.6: 22.0.0.209 - SDK 10.9 (2016-08-22) [Support]

    QuickTime Plugin: 7.7.3 (2016-07-08)

    Flash Player: 22.0.0.209 - SDK 10.9 (2016-08-22) [Support]

    PepperFlashPlayer: 22.0.0.209 - SDK 10.6 (2016-09-05) [Support]

    Default Browser: 601 - SDK 10.11 (2016-07-08)

User internet Plug-ins: ⓘ

    OctoshapeWeb: 1.0 - SDK 10.8 (2016-08-22) [Support]

3rd Party Preference Panes: ⓘ

    Flash Player (2016-06-28) [Support]

Time Machine: ⓘ

    Skip System Files: NO

    Auto backup: YES

    Volumes being backed up:

        Macintosh HD: Disk size: 498.88 GB Disk used: 70.91 GB

    Destinations:

        Seagate Backup Plus Drive [Local]

        Total size: 0 B

        Total number of backups: 11

        Oldest backup: 11/30/15, 10:50 PM

        Last backup: 9/1/16, 12:25 AM

        Size of backup disk: Too small

            Backup size 0 B < (Disk used 70.91 GB X 3)

Top Processes by CPU: ⓘ

        11%    kernel_task

         6%    WindowServer

         0%    launchd

         0%    cloudpaird

Top Processes by Memory: ⓘ

    567 MB    kernel_task

    451 MB    com.apple.WebKit.WebContent(4)

    119 MB    Mail

    102 MB    Safari

    82 MB    mdworker(7)

Virtual Memory Information: ⓘ

    581 MB    Free RAM

    3.43 GB    Used RAM (1.19 GB Cached)

    0 B    Swap Used

Diagnostics Information: ⓘ

    Sep 6, 2016, 11:09:50 AM    Self test - passed

    Sep 5, 2016, 08:32:31 PM    ~/Library/Logs/DiagnosticReports/Finder_2016-09-05-203231_[redacted].crash

        /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder

    Sep 5, 2016, 02:58:34 AM    ~/Library/Logs/DiagnosticReports/com.apple.WebKit.WebContent_2016-09-05-025834_ [redacted].crash

        /System/Library/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.We bKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent