I'm pretty sure 50ms latency between click and feedback is imperceptible to most humans. That's 3 frames at 60fps. I don't know what superhuman perception you

I'm pretty sure 50ms latency between click and feedback is imperceptible to most humans. That's 3 frames at 60fps. I don't know what superhuman perception you have, but I'm personally good with anything up to 100ms. The alternative is Jira where we're talking something like 5000ms to load an issue.