Try to use only one at a time. I've noticed it freezes a lot when buying and leveling up heroes. So activate free hero. Close and open hero tab. Should have all available heroes shown with no cost. Click button. Freeze. Turn off then on zero cost button and close and reopen hero tab. Just have to do that each time. I suggest setting the buy option to x100 to make it faster.
1 hit boss needs to be active before getting to boss fight and doesn't work with sped up time.
@GNaFF Would it be possible to increase potion bottles received? They seem critical to most things in game. Used for reducing cooldowns, reviving heroes, resetting science cooldown, and buying things you lack resources for. Something for souls and the pvp stuff would also be helpful. Thanks for all the hard work you put into this and if you have time could you look at dragon quest of the stars? Will that need to be a vip mod?