Question fps dropped probably because of 1 cores always at high usage

Xavonium

Reputable
Jun 25, 2017
25
1
4,545
windows 10 64 bit
i7 2600
gtx 1070 gigabyte OC
HDD 1TB
8GB RAM
I play at 1600 x 900, all settings low

Hi so like 3 years ago I started playing payday 2 with the same specs and I found no issues, but now I started playing again and sometimes my fps drops to 30. View: https://imgur.com/a/pS6Fm2f

as you can see on the image, cpu 8 hits 80% and above ALWAYS while the other seems fine, is that what cause my fps problems? Also since I play with only 8gb of ram and I play with 5000MB with only 3 GB to spare is that also the problem of my fps problems? I know my cpu is too weak compare to my gpu but I can't afford any cpu at the current moment. Is there any way to fix my problem or I'm just doomed to play with bad cpu. Also here's at idle View: https://imgur.com/a/Y03nQ9R

even when out of the actual game my cpu still hits 90%.