Trackpad single and double-click

Hi everyone,

I use trackpad for several years now, but I still push on it to make a single-click. It's because there is a delay between a tap and real action on the screen (about half of second!). I really have no idea why Apple need this really big and noticeable delay, because when you push the trackpad - there is no such delay, and both single and doubleclick features work as a charm. Is there a way to remove that delay? It seems that there is no such a standard option. Maybe some system adjustments or a third-party software?