Leaderboard

I am running synergy 1.13 client on osx 11.2.2 big sur with a windows 10 server. It is extremely laggy! and i get the spinning beachball of death if i move the mouse around a lot. There is no lag at all on the machine next to it that is running 10.14.6 Mojave (and is a slightly slower machine). Both are on the same wifi network. Please help