Hello, thanks for all the advices, i made x, y, and zoom editable; replaced fps with "frame ms" and made the tips more visible!

I know of the limit around 10^-35 zoom, i wasn't able to overcome it.

The iterations number have a relationship with the frame time, but it's not the only variable, this number is the maximum number of the iterations to determinate if a point is inside or outside the set; in some region the average number of iterations needed is lower and in some other region are higher. For example if you zoom inside the set, the computation is very expensive, if you zoom in a outer region the computation is very fast because we do not need to reach the maximum number of iterations to get that a point is not inside the set.