"Helmet Heroes version 7.70 beta has been released. This version has been in the works for a few months now and consists mostly of big technical changes. The games performance should be leaps better than before, with potential to support 10x the amount of characters on screen from previous versions without lag. If you have been experiencing problems recently, try the new version. Check out the button in the top-right-hand corner of the main menu to view a list of changes and known issues for the new version."
Huge performance gain with enemy rendering based lag. 10x increase in performance.