Specs for cs2?

I have ryzen 5 5500, 16 gb ddr4 ram running at 2133 hertz. I did overclock them to run at 3200 hertz through xmp but my cs2 crashes very frequently. Had to disable xmp. I have rx 570 4gb GPU.
These specs were fine for global offensive but for cs2 they are not. My Fps drops wayy too much, from 120 to 80 and at times 60fps. It is unplayable. I dont have that much budget tbh, so what are the options ? I can spend around 200USD.
I live in Pakistan so i do have many used accessories options to buy from aswell. Thanks