Q: Mac running slow after El Capitan! EtreCheck Report

Uninstall your anti-malware software and quit Firefox (crashed) as a start.

Ways to help make a slow Mac faster

1. 17 Reasons Why Your Mac Runs Slower Than it Should
2. Slow Mac Performance? This Article Solves It!
3. Fix slow start-ups in OS X | MacFixIt - CNET Reviews
4. How to fix slow shutdown and startup times. | MacTip.net
5. 6 Easy Tips to Speed Up OS X Yosemite on Your Mac

Avoid using third-party cleanup software. Usually this software does more bad than good. You don't need it. All computers become slower over time even under normal use. Experienced users erase the hard drive and do a clean install from scratch from time to time; or whenever installing a major OS upgrade. Doing so means you must maintain regular and multiple backups.

Add more RAM or cut back on the number of concurrently running applications and utilities. Remove unnecessary anti-malware software and any software that promises to clean your Mac. Check for runaway processes: Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity. Also, visit The XLab FAQs and read the FAQ on dealing with The Spinning Beach Ball of Death.

The Ultimate Fix

Backup everything, erase the drive, reinstall OS X, and restore your data from the backup. Reinstall third-party software from original media/scratch.

You should look over the Etrecheck report and see if you notice anything.

Start by removing AVIRA. It is not needed and may be contributing to your issues.

Ehttp://www.avira.com/en/support-for-home-knowledgebase-detail/kbid/1242

I'm having the same issues. Macbook is running slow. I have a mid2010. Please help and I am clueless when it comes to this. Here's my EtreCheck

EtreCheck version: 3.0.3 (307)

Report generated 2016-09-05 02:27:38

Download EtreCheck from https://etrecheck.com

Runtime 3:47

Performance: Good

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

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

Problem: Computer is too slow

Hardware Information: ⓘ

    MacBook (13-inch, Mid 2010)

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

    MacBook - model: MacBook7,1

    1 2.4 GHz Intel Core 2 Duo CPU: 2-core

    2 GB RAM - Insufficient RAM! Upgradeable - [Instructions]

        BANK 0/DIMM0

            1 GB DDR3 1067 MHz ok

        BANK 1/DIMM0

            1 GB DDR3 1067 MHz ok

    Bluetooth: Old - Handoff/Airdrop2 not supported

    Wireless:  en1: 802.11 a/b/g/n

    Battery: Health = Normal - Cycle count = 135

Video Information: ⓘ

    NVIDIA GeForce 320M - VRAM: 256 MB

        Color LCD 1280 x 800

System Software: ⓘ

    OS X El Capitan 10.11.6 (15G1004) - Time since boot: less than an hour

Disk Information: ⓘ

    Hitachi HTS545025B9SA02 disk0 : (250.06 GB) (Rotational)

        EFI (disk0s1) <not mounted> : 210 MB

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

        Macintosh HD (disk1) / : 248.83 GB (207.76 GB free)

            Encrypted AES-XTS Unlocked

            Core Storage: disk0s2 249.20 GB Online

    HL-DT-ST DVDRW  GS23N   ()

USB Information: ⓘ

    Apple Inc. Built-in iSight

    Apple Inc. BRCM2070 Hub

        Apple Inc. Bluetooth USB Host Controller

    Apple Inc. Apple Internal Keyboard / Trackpad

Configuration files: ⓘ

    /etc/sudoers, File size 1242 but expected 2299

Gatekeeper: ⓘ

    Anywhere

Unknown Files: ⓘ

    ~/Library/LaunchAgents/com.apple.CSConfigDotMacCert-igorzolotic@me.com-SharedServices.Agent.plist

        /System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framewo rk/Versions/A/Support/CSConfigDotMacCert -l /Users/IgorZolotic/Library/Logs/CSConfigDotMacCert.log -u igorzolotic@me.com -t SharedServices -s

    One unknown file found. [Check files]

System Launch Agents: ⓘ

    [not loaded]    7 Apple tasks

    [loaded]    160 Apple tasks

    [running]    63 Apple tasks

    [killed]    8 Apple tasks

    8 processes killed due to insufficient RAM

System Launch Daemons: ⓘ

    [not loaded]    47 Apple tasks

    [loaded]    159 Apple tasks

    [running]    75 Apple tasks

    [killed]    9 Apple tasks

    9 processes killed due to insufficient RAM

Launch Agents: ⓘ

    [loaded]    com.oracle.java.Java-Updater.plist (2016-06-13) [Support]

Launch Daemons: ⓘ

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

    [loaded]    com.oracle.java.Helper-Tool.plist (2016-06-13) [Support]

User Launch Agents: ⓘ

    [failed]    com.apple.CSConfigDotMacCert-[...]@me.com-SharedServices.Agent.plist (2009-09-06) [Support]

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

    [loaded]    com.dtv.vgconnect.uninstall.plist (2016-07-15)

    [loaded]    com.google.keystone.agent.plist (2016-08-31) [Support]

    [failed]    com.seagate.dashboard.plist (2016-07-26) [Support]

    [running]    com.spotify.webhelper.plist (2016-09-05) [Support]

User Login Items: ⓘ

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

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

    Spotify    Application Hidden (/Applications/Spotify.app)

Internet Plug-ins: ⓘ

    FlashPlayer-10.6: 22.0.0.209 - SDK 10.9 (2016-07-15) [Support]

    QuickTime Plugin: 7.7.3 (2016-07-19)

    Flash Player: 22.0.0.209 - SDK 10.9 (2016-07-15) [Support]

    JavaAppletPlugin: Java 8 Update 91 build 14 (2016-06-13) Check version

    Default Browser: 601 - SDK 10.11 (2016-07-19)

User internet Plug-ins: ⓘ

    OctoshapeWeb: 1.0 - SDK 10.8 (2016-07-15) [Support]

    WebEx64: 1.1.0 - SDK 10.10 (2016-06-01) [Support]

3rd Party Preference Panes: ⓘ

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

    Java (2016-06-13) [Support]

Time Machine: ⓘ

    Time Machine not configured!

Top Processes by CPU: ⓘ

        18%    kernel_task

         5%    WindowServer

         3%    mdworker(7)

         0%    fontd

         0%    corestoragehelperd

Top Processes by Memory: ⓘ

    289 MB    kernel_task

    174 MB    com.apple.WebKit.WebContent(2)

    131 MB    mdworker(7)

    74 MB    Safari

    63 MB    Finder

Virtual Memory Information: ⓘ

    47 MB    Free RAM

    2.20 GB    Used RAM (490 MB Cached)

    17 MB    Swap Used

Diagnostics Information: ⓘ

    Sep 5, 2016, 01:38:18 AM    Self test - passed

    Sep 5, 2016, 12:21:54 AM    ~/Library/Logs/DiagnosticReports/Dock_2016-09-05-002154_[redacted].crash

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

2GB is not enough. Add RAM (preferably make it 8GB, but 4GB is ok).

Also, you may want to take the opportunity and put an SSD in. For little more than a hundred dollars you'll feel like you have new machine.

The 2 places I’ve seen recommended most to buy reliable RAM are below. I have purchased RAM several times from Other World Computing and have always been very satisfied with the product and service. They have on-line instructions on how to replace the RAM. OWC has also tested RAM above what Apple states is the maximum. I now have 6GB installed on an early 2008 iMac supposedly limited to 4 GB and noticed an improvement.

Crucial

Other World Computing 

Thanks for the input. I bought a new SSD that operates faster and a total 8GB of RAM