Videos stuttering with XnView MP but work fine with Classic [Solved]

[CreativeWorld]

Hello, I just installed xnview mp and classic both. Playing videos with the internal renderer, MP stutters very badly, but classic works perfectly fine. Can you please fix this issue?

[CreativeWorld]

I just noticed that Classic uses LAV video decoder that came installed with MPC-HC.
Is there a way I can make XnView MP use LAV instead of whatever it is using right now?

[xnview]

XnView MP use by default FFMPEG engine, but you can use installed codec by editing useInternalVideoPlayer in xnview.ini

[CreativeWorld]

Thank you, that worked.

[fussfolk]

Though heavily and mostly luckily using XnviewMP I have experienced that video playback stuttering if using the internal video player. It even became worse recently when upgrading my laptop from an older Intel i7 to a new AMD Ryzen 9 5900HX (unexpectedly).

Therefore I've got the same question, yet might have not yet fully understood the previous answer so far:
How can I edit the xnview.ini properly, NOT to disable the internal video player, BUT to point to another codec instead of the FFMPEG engine?

Thanks in advance!