Hello, I am a mostly mobile player

When playing with new-to-arena Urza, Lord High Artificier, you have to submit your action after tapping an artifact instead of click-tapping like you normally do. This happens when you are not in full control and makes the game completely unplayable in later rounds where one would use a lot of mana because each tap takes few seconds and makes your time run out, makes the game unenjoyable to you and your opponents.
Can you please fix this issue?