DAS seems to be higher than the set value.

Please note the target frame rate you have set. Since the game has many special effects, it requires relatively high hardware specs. If the frame rate you set is higher than what your computer can support, the game will run slowly. You can see the actual frame rate displayed in the top left corner.

Sometimes can't move blocks using a controller in certain situations.
This is due to conflicts between Unity and Steam. I have implemented the recommended solutions from official sources. Based on feedback from some players, this issue has been solved.

Moving right with the controller feels not sensitive enough.
This has been fixed in version v0.3.0_5 and above.

Direction keys are bound to the Print Screen.
This has been fixed in version v0.3.0_5 and above.

The difficulty is too high or hard to get used to.
Consider switching to Simple difficulty or adjusting the speed. Currently, the learning curve is too steep. I will urgently add more guidance for beginners. Consider more accessible ways to play, for example, assisting with rotation - players would only need to move left/right and press the hard drop to achieve decent stacking.

Do I have to watch the notation on the left?
You can set the note map to be on the left or right side of the screen. Also, incomplete notation information will be shown on the ghost piece.