I don’t know why. Mostly I don’t notice much lag, but any time I go down there it stutters horribly.
I am on Linux playing the steam client, which is generally a bit more laggy than the other Linux client, but the sound works better so I use it still.
I am just using whatever the default is in steam, and it works fine. The regular client won’t work anymore with Jagex launcher without setting up the launcher through Lutris. I will need to do that and try the sound fix again, I could never quite get it to work.