1.6.1 - browser/viewer - playbar - incorrect slider position for short files

[user0]

XnViewMP 1.6.1 64bit
Windows11 (22H2), display resolution 3840x2160, win scaling 150%

Browser/Viewer - playbar

• default start position of slider depends on the file length and shifts to the right on short audio/video files, eg Fine.mp4 (126.74 KiB)
  when play button pressed - slider jumps to the begining
  
  
  playbar_start_position.png

• slider moves too jerkily on short files
  it would be nice if slider moves smoother, eg like in foobar
  10sec_mp3.zip