Directory Opus 11.18 x64 is running very slow

Hello.
Recently I have installed latest stable version of Directory Opus(11.18 x64) on my main computer(previous installation of Dopus was removed beforehand), and for some reason it is running very slow. In particular it takes significant amount of time to open every directory on my PC, for example it takes about 7 seconds to open disk C: root directory, by the way C partition is located on SSD. During this slowdowns Directory Opus is unusable, in other words it just hangs. Other file managers don't show any performance related issues.

mediafire.com/download/pih94 ... s+slow.mp4 - a small video capture of the problem.

Best place to start:

Crash, exit or high CPU usage when viewing certain directories