Hey, thanks for trying out our game, your feedback is greatly appreciated!
Those are definitely changes we plan on implement in the future we tried to keep it to the minimum of the game loop for the jam as it is our first game (even tho we got a bit late time-wise haha)!
For the digging part, the "unresponsiveness" of the digging is wanted since you need to mash your spacebar/enter/A button on a gamepad a lot to dig up one level .