Hey there, thanks for playing! Yeah, the lag thing is still a problem I'm trying to figure out. The health items do give less health on the harder difficulties, but if it's on the same save at a lower difficulty, then that's probably a bug. The current game is being overhauled with my own artwork and a different save system. I'm still very much a beginner when it comes to game development, so this will take some time. I'm glad you enjoyed it though! I will hopefully release a demo for the updated game soon, with the redone artwork.