Thank you for your detailed feedback!
The speed up button was actually in the game until just a few hours before deadline, so we didn’t worry about waiting times. Unfortunately we realized last minute that it completely broke the game for players with low FPS (for example turrets wouldn’t aim properly). That’s why we decided to remove it, but it’s top priority for the post jam update.
The delay when shooting happens because the player actually fires a physical bullet, which follows the exact path of the laser at the moment you press the button. So it should always be accurate.
The UI issue is due to us not knowing how to properly implement UI for different resolutions, but that’s also a top priority for us.
Again, thank you for taking the time to give us this feedback! Especially the UI issue was something we weren’t aware of, so this really helps us :)