general question

So I'm getting an upgrade to where I'm going from 60 fps (on 70% resolution on 1280 X 720) 60hz to 165 fps 165hz. Furthermore my wifi card was busted on my old pc so I was having constant lag spikes and packet loss. Will I see a big imporvement or nah?

60 fps to 165 fps is literally game changing yes

Yeah you will. but use Ethernet too

yes, but plz try to get a pc that gets over 200 fps at least, if ur only getting 165 on a 165hz, ur prolly gonna dip below ur refresh rate which causes screen tearing and input lag

u will notice a huge difference yes , also dont play on wifi get a cable , playing on packetloss and ping spikes is literally revolting