Ps5 great internet speed but crazy lag

Crazy lag on ps5 is there a fix?

either your internet or the server

Ive tried many different servers my ps5 internet speeds is 800-900 mbps i even tried porting my ps5

and still lag? on a specific server or every?

I used to play on ps4 all the time never had this problem

Every i know forsure like 3-4 different ones

see if any mates have it on ps5 aswell and if not it might be servers

Still dealing with it i wish they would fix it bc very seldom it plays like it should