Q: Sluggish performance and Safari redirects?

Sorry for the late reply. I was away from my lap top for a few days. I have gone through many of the links provided but I still have issues with my computer.

I ran the Etresoft diagnostic, here are the results:

Problem description:

Sluggish performance and Safari re-directs

EtreCheck version: 2.4.2 (142)

Report generated 9/22/15, 7:21 PM

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

Hardware Information: (What does this mean?)

    MacBook Air (11-inch, Mid 2011) (Technical Specifications)

    MacBook Air - model: MacBookAir4,1

    1 1.6 GHz Intel Core i5 CPU: 2-core

    2 GB RAM Not upgradeable

        BANK 0/DIMM0

            1 GB DDR3 1333 MHz ok

        BANK 1/DIMM0

            1 GB DDR3 1333 MHz ok

    Bluetooth: Old - Handoff/Airdrop2 not supported

    Wireless:  en0: 802.11 a/b/g/n

    Battery: Health = Normal - Cycle count = 56 - SN = C0112660T9NDKRTAY

Video Information: (What does this mean?)

    Intel HD Graphics 3000

        Color LCD 1366 x 768

System Software: (What does this mean?)

    OS X 10.10.5 (14F27) - Time since boot: less than an hour

Disk Information: (What does this mean?)

    APPLE SSD SM064C disk0 : (60.67 GB) (Solid State - TRIM: Yes)

        EFI (disk0s1) <not mounted> : 210 MB

        Macintosh HD G (disk0s2) / : 59.81 GB (39.71 GB free)

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

USB Information: (What does this mean?)

    Apple Inc. FaceTime Camera (Built-in)

    Apple Inc. Apple Internal Keyboard / Trackpad

    Apple Inc. BRCM20702 Hub

        Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information: (What does this mean?)

    Apple Inc. thunderbolt_bus

Configuration files: (What does this mean?)

    /etc/sudoers, File size 2299 but expected 1275

Gatekeeper: (What does this mean?)

    Mac App Store and identified developers

Problem System Launch Agents: (What does this mean?)

    [killed]    com.apple.CallHistoryPluginHelper.plist

    [killed]    com.apple.CallHistorySyncHelper.plist

    [killed]    com.apple.cloudd.plist

    [killed]    com.apple.coreservices.appleid.authentication.plist

    [killed]    com.apple.gamed.plist

    [killed]    com.apple.icloud.fmfd.plist

    [killed]    com.apple.nsurlsessiond.plist

    [killed]    com.apple.secd.plist

    [killed]    com.apple.security.cloudkeychainproxy.plist

    [killed]    com.apple.telephonyutilities.callservicesd.plist

    10 processes killed due to insufficient RAM

Problem System Launch Daemons: (What does this mean?)

    [killed]    com.apple.awdd.plist

    [killed]    com.apple.ctkd.plist

    [killed]    com.apple.ifdreader.plist

    [killed]    com.apple.nsurlsessiond.plist

    [killed]    com.apple.softwareupdated.plist

    [killed]    com.apple.wdhelper.plist

    6 processes killed due to insufficient RAM

Launch Agents: (What does this mean?)

    [loaded]    com.google.keystone.agent.plist [Click for support]

Launch Daemons: (What does this mean?)

    [loaded]    com.google.keystone.daemon.plist [Click for support]

    [loaded]    com.microsoft.autoupdate.helpertool.plist [Click for support]

    [loaded]    com.microsoft.office.licensingV2.helper.plist [Click for support]

User Login Items: (What does this mean?)

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

Internet Plug-ins: (What does this mean?)

    Default Browser: Version: 600 - SDK 10.10

    QuickTime Plugin: Version: 7.7.3

3rd Party Preference Panes: (What does this mean?)

    None

Time Machine: (What does this mean?)

    Time Machine not configured!

Top Processes by CPU: (What does this mean?)

        26%    com.apple.WebKit.Networking

        16%    com.apple.WebKit.WebContent(2)

        13%    WindowServer

         9%    mdworker(3)

         3%    Safari

Top Processes by Memory: (What does this mean?)

    315 MB    kernel_task

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

    82 MB    Safari

    78 MB    mdworker(3)

    45 MB    System Events

Virtual Memory Information: (What does this mean?)

    101 MB    Free RAM

    1.90 GB    Used RAM (294 MB Cached)

    553 MB    Swap Used

Diagnostics Information: (What does this mean?)

    Sep 22, 2015, 06:44:34 PM    Self test - passed

    Sep 21, 2015, 11:16:47 PM    /Library/Logs/DiagnosticReports/com.apple.AmbientDisplayAgent_2015-09-21-231647 _[redacted].crash