I just found out that changing to 64 bit Java from 32 bit helps lots in terms of framerate, performance etc.
I have tried copy pasting the latest java version into the spiral knights folder but the game wouldnt run because of java error. Something about can't create virtual java machine or something. Is there a fix to this, please help me out!
Try Java 8. It is the last version of Java that still works like that.
https://forums.spiralknights.com/en/node/62691
make sure you copy pasted the jre file of java and that it was in the program folder instead of program 86. If there's nothing there, or you wish to update it, then download the offline 64 bit java installer. The newest version of that works for me. Also read towards the bottom there are a few commands you can give the game that should help with performance as well.
They really should just make this the default for 64 bit systems so people don't have to mess with all this.
C'mon, Grey Havens.
Build the 64-bit libfroth.so library for Linux already. Since there's no official Steam version for Linux and you don't provide a account re-converting I have to fool Steam into thinking that the standalone Linux version is the actual Steam version to make it run and support my account. As if that's not enough there's only a 32-bit libfroth.so (which doesn't function with 64-bit Java), unlike its Windows counterpart which itself is essential for Steam support.
I can live being stuck with Steam on Linux, but GH, please build the 64-bit libfroth.so! Performance hit is just too great.
I don't know much about this. But in case you're not already aware, we occasionally have threads on this topic, and maybe one of those threads contains the specific information you want. Try this Google search:
64-bit Java site:forums.spiralknights.com
Perhaps someone with more knowledge will chime in soon to help you. Good luck.