I play in low quality mode.

However, when I switch to Bush Whacker formation to hit a boss level, and click on the Click-o-Rama ability.... the game seizes up when I start to click frantically - which sometimes results in the ability timer to count-down without really getting its full use.

My suggestion would be while in low-quality mode to remove the on-click graphic swishes, and also remove the monster damage and gold amount pop-ups. I think less things moving on the screen will reduce the congestion and optimize game play.

cheers,
EndlessNight