CS2 slows down pc and having huge lags and fps drops

Hi everyone, I havne't played in a while but now everytime I log on my pc just slows down completely, the loading time is long and even in the home screen I'm having huge fps drops, also in the home screen I'm on about 100 fps and it drops to the 30 mark, I have tried re-installing and I even factory reset my pc, I have a ryzen 7 3700x and a 4070, I know its a bit of a bottleneck but not something that should make the game unplayable... I have tried lowering my settings but nothing seems to work and I just have these huge lags, can someone help me find a way to fix it? thanks