I've suffered FPS issues on this game ever since sprites have been added and now I'm determined to find the best config to allow me to play at a decent frame rate.
Here are my specs:
System Model: Inspiron N4010
Processor: Intel Core i3 CPU M380 @ 2.53GHz (4 CPIs), ~2.5GHz
Memory (RAM): 4.00 GB
Video Card: Intel HD Graphics
OS: Windows 7
Here is my current extra.txt config (I honestly slapped most of this stuff on from threads back in 2011-2012, I really don't know what any of this means). I'm however playing the game without the config:
-Xms4G
-Xmx4G
-XX:+UseParallelGC