JullianD try opening the menu at the right side and turning the Particle number to 0.1 if its the blood that makes you lag, if its the amount of shards, don't make as many shards :3
LOL on #6, on the top screen that says "uuuuuuuuuuuu what does that button do?" it shows a faint picture of Deedee from Dexter's laboratory on the uuuuuuuuu part.
After playing this game on and off for the last 3 days, I just now notice that "Apopalypse" mode is not spelled "Apocalypse" mode, which I have been reading it as.