So I got openjk (academy and outcast) to work on a raspberry pi 3b+ but even with everything on low, when there is alot on screen the game starts to lose frames. I have found out that openjk (and I believe jedi academy and outcast in general) only uses on of the 4 cores of the pi making the game run on a single core clocked at 1,4GHz. Like the title says. Is there anything else I can do to improve performance?