From what I've observed, the program preload all images into memory, thus you need at least 600MB RAM to run the Nutaku only version, the only way to fix this issue is to either:
- Improve the loading algorithm by making it more lazy
- Separate Nutaku and DMM version to make them load less asset
I think I can improve the 1st one, because it takes quite a long time to load the program in my computer, so I'll try to implement lazy load.