External changes update speed

Is it possible to change how fast DOpus reacts to files and folders external changes?
E.g. a when a file is added/moved/copied or just changed in external program? When I don't see changes in DOpus in 0.5 s, I start thinking that something went wrong only to see it actually change after 1 s. I would like DOpus to do checks more frequently, at least for focused DOpus window.

(I know it sound ridiculously when someone says waiting 0.5 s is too long but it really annoys me.)

It's that way because reacting too quickly can cause problems, e.g. if a file is being updated via some combination of rename/replace/delete. If we react too fast, we can lose track of what the user considers the real file to be.

Ah, I see. Thanks for your reply.