sure, i know that, but the baris so laggy, hitting the black line for critical hits is worse than winning the lottery...
I think it's poorly demonstrated, and not intuitive either, that the goal is to click below the line on the bar with timing such that the top of the bounce exactly reaches the line. You may already be doing this, I don't seem to be experiencing lag with the bar, and the game doesn't seem to be too taxing on my system.
I expect something needs to be adjusted with the design of the mechanic itself, as the intuitive method would be to click when things are aligned, but in that case you'd always miss. It also requires the bounce to be more than pixel perfect, the line can bounce to hit the black line on the bar exactly, but still be a miss. I don't think this is random, it looks to me that the computation for determining the hit on the bar is more precise than the display of the bar, which feels bad.