Mac freezes every few minutes, video freeze, slow boot,

My Mac was running on 10.10 and suddenly out of nowhere it started to hang with the spinning wheel appearing every few minutes. In the meanwhile I got the 10.10.4 update which I installed hoping it would solve the issue but apparently not. It is almost impossible to use: everything freezers, even opening web pages on chrome takes time and the time taken to reboot is just too much.

I tried a few things: Running disk repair, conducted AHT where no hardware errors were found, reset PRAM, removed itunes from login items. But none of these have helped. I am pasting below the Etre check report hoping someone is able to tell me what I can do. Thanks!!

Problem description:

Laptop has gone really slow, and hangs with the cursor revolving all the time

EtreCheck version: 2.3 (135)

Report generated 8/4/15, 3:32 PM

Download EtreCheck from http://etresoft.com/etrecheck

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

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

Hardware Information: (What does this mean?)

MacBook Pro (13-inch, Mid 2012) (Technical Specifications)

MacBook Pro - model: MacBookPro9,2

1 2.5 GHz Intel Core i5 CPU: 2-core

8 GB RAM Upgradeable

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 831 - SN = 9G2370V0GD3MB

Video Information: (What does this mean?)

Intel HD Graphics 4000

Color LCD 1280 x 800

System Software: (What does this mean?)

OS X 10.10.4 (14E46) - Time since boot: about 6 hours

Disk Information: (What does this mean?)

APPLE HDD TOSHIBA MK5065GSXF 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 (272.29 GB free)

Core Storage: disk0s2 499.25 GB Online

MATSHITADVD-R UJ-8A8 ()

USB Information: (What does this mean?)

Apple Inc. FaceTime HD Camera (Built-in)

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Apple Internal Keyboard / Trackpad

Thunderbolt Information: (What does this mean?)

Apple Inc. thunderbolt_bus

Gatekeeper: (What does this mean?)

Mac App Store and identified developers

Startup Items: (What does this mean?)

HWNetMgr: Path: /Library/StartupItems/HWNetMgr

StartOuc: Path: /Library/StartupItems/StartOuc

wpa_supplicant_srv: Path: /Library/StartupItems/wpa_supplicant_srv

Startup items are obsolete in OS X Yosemite

Launch Agents: (What does this mean?)

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

[unknown] com.oracle.java.Java-Updater.plist [Click for support]

[running] HWPortCfg.plist [Click for support]

Launch Daemons: (What does this mean?)

[loaded] com.adobe.fpsaud.plist [Click for support]

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

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

[unknown] com.oracle.java.Helper-Tool.plist [Click for support]

[loaded] com.oracle.java.JavaUpdateHelper.plist [Click for support]

User Login Items: (What does this mean?)

None

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

Flip4Mac WMV Plugin: Version: 3.0.0.126 - SDK 10.8 [Click for support]

FlashPlayer-10.6: Version: 18.0.0.209 - SDK 10.6 [Click for support]

QuickTime Plugin: Version: 7.7.3

Flash Player: Version: 18.0.0.209 - SDK 10.6 [Click for support]

Default Browser: Version: 600 - SDK 10.10

o1dbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]

SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 [Click for support]

googletalkbrowserplugin: Version: 5.41.0.0 - SDK 10.8 [Click for support]

Silverlight: Version: 5.1.10411.0 - SDK 10.6 [Click for support]

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?)

11% Google Chrome Helper(4)

7% WindowServer

2% coreaudiod

1% Google Chrome

0% cloudpaird

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

909 MB Google Chrome Helper(4)

709 MB kernel_task

451 MB softwareupdated

164 MB Google Chrome

115 MB VLC

Virtual Memory Information: (What does this mean?)

3.79 GB Free RAM

4.21 GB Used RAM (1.37 GB Cached)

0 B Swap Used

Diagnostics Information: (What does this mean?)

Aug 4, 2015, 08:28:07 AM Self test - passed

Aug 3, 2015, 02:46:39 AM /Library/Logs/DiagnosticReports/com.apple.internetaccounts_2015-08-03-024639_[r edacted].crash

Aug 2, 2015, 09:36:39 PM /Library/Logs/DiagnosticReports/Microsoft Word_2015-08-02-213639_[redacted].hang