Valheim game as such has a limit on data bandwitch i.e. how much data the client or server can send when there are more of you in one place, so the server needs to send more data than the game limit.
As a result, this results in lags
This problem can be solved with this modification https://valheim.thunderstore.io/package/Dalayeth/NetworkFix/
It must be installed on both the server and the client PC
