Gym mechanics are almost unbearable

The minigame for lifting weights is horrible.. its laggy and inconsistent. I’ve seen many people just give up and walk away. I have had instances where the slider stops right before the zone that I am supposed to time with it.. for it to then skip over it completely. rendering the first 5 reps useless. Try it for yourself.. it is unbearable. I find it absurd to spend literal hours in the gym/waiting to recover.. for little to no progress ,please fix the minigame