Hey friend!
Thanks for your feedback. I'll reply more in depth later, but the new update addressed some of your suggestions.
Version 0.5.3 addressed big memory leak problems, some comparatively very small leaks still exists and I've identifies them yesterday but I wasn't able to address them, hopefully I'll patch them soon enough.
Either way, version 0.5.4 should have better performance for you since I changed the way I manage graveyards.
Cheers!