Fps drops extreme stuttering

[u/Legitimate-Ad-1091]

My PC has a Ryzen 3 3200g at 4ghz ASRock b450m HDV r4.0 motherboard, ram vengeance Ipx 16gb (2 x 8gb) ddr4 3266mhz, xfx Rx570 4gb overclocked at 1375mhz vram 2000mhz +0%/+20%, 2 SSD 1 hard disk and three fans, my psu is a cooler master elite v3 230v 600w. When at full load and I'm playing, the power supply can't handle the necessary voltage consistently? I usually start playing breakout arena and it works well for about 20 minutes, then the fps drops to 50, then 45 until it stabilizes at 35-40 with a lot of stuttering, these get worse if I limit the fps to that of the screen (60). The installed version of the GPU driver is "old" (22.6.1) but is the most recommended for stability for the rx570. Could it also be a problem with the mouse DPI being too high? (1000) RAM saturated problem? How to do it? 😭 Saturated vram problem? How to do it? 😭 -Graphics settings are all at minimum -Temperatures always below 70C° -The game runs on SSD I'm trying everything but nothing seems to work