Problem might be mod related need some help if possible

[Demonik420]

hey everyone i am having a problem with my game.. its always run perfectly fine since it was released. however lately and without any change to the mods i am using it has started to have lag spikes.. basically there is a saved game that i have from a while ago and when i load that game it is completely lag spike free.. but as i continue to play on from that point in my game after about an hour it starts.. it begins with a spike that will only last about a millisecond and it only happens every several minutes.. but as i continue to play it gets progressively worse. it starts happening more frequently and last for much longer periods. for example at the point im at right now its degraded into a spike every half minute or so that lasts around 5 to 6 seconds.. and keep in mind that when i go back to my save file that had no lag and start playing again it's fine.. there is no lag whatsoever again until about an hour or two after ive been playing and no matter how many times i reinstall the game and all mods or how many times I reboot or w/e that save file is always no lag and as i load saves from that point on they are in the same condition that they were in when i was playing. one in the middle will have barley any lag but my newest save will have the almost unplayable frequency of lag spikes. i really need some help because it has never acted like this befor and its not that my card is getting to hot as i monitor my temps and those games will lag the same frequency on a cold boot or after a few hours of play.. it is almost as if the games i am playing are degrading over time and staying that way and i have played from my lag free save and a bit further back like 3 times with things switched around to try and find a cause so i hav played the same 4 to 5 hours of the game over 3 times and still cant figure it out.. i really need some help and thanks for any imput :D.

 

p.s keep in mind also that i played for months with the same mod setup with no troubles whatsoever.

 

specs:

nvidia gforce gtx 580 superclocked

amd 975 B.E. overclocked to 4.2 ghz

16 gig corsair ram

black edition TB hardrive

 

main mods:

SuperBENB (with my own custom realistic lighting .ini file) and DOF

CBBE slim edition

CoverWomen

 

and a few other minor mods ask me if you need my full list.