Zelda: Ocarina of Time - can't aim finely enough with keyboard for water temple

Thank you! I just uploaded to the repository and am dropping a copy here - Legend of Zelda, The - Ocarina of Time (E) (V1.0) [!] (8) (1).ggz (1.8 MB)

I’m using a macbook pro with it’s native keyboard to map the keys to the joystick/buttons, and unfortunately don’t own any game controllers/joysticks. I tried to play with the “Accuracy” setting but didn’t figure out whether that was accuracy of controls vs some visual or color setting. Thanks for your help and please let me know if I can send anything else (screen captures/other info) that could be helpful. The red dot that aims the hookshot seems to either be just above or just below the target you have to hit here on my computer. Thanks!