On various forums, I've seen people noting that Valheim caps the upload speed to the server at some ridiculously small number like 64 kb/s. They've had some success modifying it. It looks like it wouldn't be too difficult to do here on Survival Servers using FTP, but it would be reset after every server restart. Would there be a way Survival Servers could offer this feature (i.e. set up a script to configure it after server restarts and put a drop-down on the control panel) automatical