Performance Issues with PC custom built

[Mers]

In the past couple of weeks I have noticed some performance issues while gaming. I have noticed a lower fps throughout all my games includng counterstrike, guildwars 2, and league of legends. In league i normaly have a steady 60 fps but lately its gone down to fps. I'm not sure what things I can do to trouble shoot this so please list any suggestions that you might have.
Here are my systems specs:

OS Name Microsoft Windows 7 Home Premium
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name OWNER-PC
System Manufacturer System manufacturer
System Model System Product Name
System Type x64-based PC
Processor AMD Phenom(tm) II X6 1100T Processor, 3300 Mhz, 6 Core(s), 6 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 2001, 3/19/2010
SMBIOS Version 2.5
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume1
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name Owner-PC\Owner
Time Zone Eastern Daylight Time
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 4.00 GB
Available Physical Memory 2.25 GB
Total Virtual Memory 8.00 GB
Available Virtual Memory 5.35 GB
Page File Space 4.00 GB
Page File C:\pagefile.sys

[Phantom]

Have you defragged lately or ever?
Also if you wanna show us the important specs get a program called speccy.

[Mers]

k heres my system info via speccy:
http://speccy.piriform.com/results/2nXp ... oypx0vSIAq

[Phantom]

k heres my system info via speccy:
http://speccy.piriform.com/results/2nXp ... oypx0vSIAq

But have you DEFRAGGED??!?!?!??!

[Mers]

i defragged yesterday but ill do it again. Will cleaning your motherboard and cpu increase performance?

::edit::
My case has good ventilation because there is virtualy no dust in there.

[Phantom]

i defragged yesterday but ill do it again. Will cleaning your motherboard and cpu increase performance?

::edit::
My case has good ventilation because there is virtually no dust in there.

Well if you defragged yesterday and you still have performance issues and it isn't all the dust in your case then I can't really be sure.
I'm not going to keep posting like I know what I'm talking about. So you're basically fucked until SoulHarvester (The god of computer problems) gets online and posts in this thread.
Last piece of advice, check to see if you got a virus when downloading all that gay porn or whatever.

[Mers]

Did virus scan yesterday nothing came up.

[soulharvester]

SoulHarvester (The god of computer problems)

Not even close.

Anyways, What have you installed recently?

Edit:

What did you scan with? And is it really relevant (Have you done anything that could have actually gotten your PC Malware lately)?

[Mers]

I used Norton to scan, but as far as activity I do watch some shows on the internet using various streaming sites that contain so many advertisements for various falsities. But I did update my computer a couple weeks back so I will do a system restore to about one month ago and see if this helps.

[soulharvester]

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