1 Fps drops causing stutter with any cap

[McSteezzyy]

Hey guys. I use RTSS to cap my frames bc I was having a lot of trouble with fps instability. I have a 1660 Super and an r5 3600. It was happening in every game with random circumstances and in random intervals. I’d be fine then all of a sudden my 99% fps would drop by half and my fps average would drop by about 20 then go back up. It caused this super unpleasant jerky feeling. So I used rtss to cap my frames and no matter what the cap is, my fps will frequently drop by literally 1 fps and cause the whole screen to stutter for a second. The Frametime graph on the overlay shows a spike with an immediate recover back to my stable frametime. If anyone could help that’d be great. I’ve tried so many things. 
 

r5 3600

nh-u12s cooler

1660 super

650 gold power supply

2x8GB dual channel 3200mt/s 

asrock x570 taichi 

144hz free sync monitor from Msi with 1ms response time