For lag: User skwerly recommended this: "If you have lag issues, set Flash's local storage for chat.kongregate.com to Unlimited. This kills lag in many games on the site. Dunno if it'll help with this game, but it doesn't hurt to try." - Right click anywhere in the game window, choose "settings" menu that appears, then the folder icon, then drag the slider all the way to the right to "unlimited"
I really like this, need to make something similair someday :) There are some problems however with bugs. I got a bug 2-3 times where the mouse would no longer respond. Also I grinded a lot and upgraded, and it made it super easy on the last level, but when I closed the game and returned there was something "off" with my upgrades because the levels where a lot harder. I think there was some information that was not saved or something. I think it had to do with how fast I got gold.
 "Tap Heroes"){kind=icon}
 "Royal Offense"){kind=icon}