BS Player Problem

[BSPeter]

For starters please always mention BS.Player version and build number.
You mention "... other players act the same" meaning that you have the same problem when using other players. In this connection maybe also provide some info about your PC (CPU, GPU, memory, OS).
Do you have this problem irrespective of which type of videofile you're playing?
Can you let us know which filters/codecs are used by BS.Player for files that have the stuttering? (You can find out by loading/playing such file and then performing a rightclick and selecting Options>Filters>Advanced and if necessary click on "Source" and on the small [+]-signs in front of the filters shown, which will give you further info and access to the filters.)
How are settings under
rightclick>Options>Preferences>Video>[Video rendering] ?
Also what is setting of "Process priority" under Preferences >General [General settings] (and, if Pro-version, settings under [Network buffer])?