Hey, thanks for playing our little game! Cool to hear that the auto-battling is also appreciated!
Yes, performance is a little problem we have currently, if you have too many units with a lot of attack speed it can get really bad, but we also got a Windows build for better performance 😬.
About the game balance, unfortunately was a thing we couldn't make it better at the time, we lost 2 days of work by accidentally deleting the project 😓. About the turret, it was planned at one point having the ability or a buff that places turrets in other planets with different bullet types, good to hear that we were in the right path, thanks for sharing!
Also played your game and left a comment there! 😎