Time delay of single click

So, the trouble. There is small time delay when I open folders via single click. Is there any chance to turn it off exept editing register? Or can the developers reduse it to 0? Couse it is realy big delay and I realy hate double clicking. I know there was the same topic but it dated 2012 and does not seem alive.

Mouse click delays in Opus, and in Windows generally, tend to be derived from the double-click speed set in the mouse control panel. (Even if they don't literally involve double-clicking. It is more accurately a setting that configures how fast things react to the mouse buttons.)

So, in another words, time delay will stay forever and will not be removed like in oher file managers?

There are reasons for the delay, but you can reduce the delay to a very, very small time via the mouse control panel.