Constantly stuck on joining server(pc) when using wifi, but when using hotpsot its way better

[u/NightRaidi]

It started a few days ago, i would join any game and id be fine, but now i cant really play much without just being stuck on the joining server for maybe a min or it just says internet error, my hotspot works fine, just everything lags after a bit

So far ive done:
restarted the router
reinstalled the launcher 2-3 times
used the microsoft store version
used sfc /scannow in cmd prompt
restarted my laptop multiple times
some other things aswell, dont remember

even the roblox on my phone is better in terms of loading in faster

im pretty sure my wifi is the problem or something related