The VideoLAN Forums

I make backup ISO files of DVDs that I own and they work fine on VLC, but when they only play still frames, like in menus or special features, they don't work properly. I have to use PowerDVD to make the discs work properly like they would on a normal DVD player. This usually happens when there are still frames with audio still running but the frames aren't rendered in time or they don't show up.

For example, I have a DVD copy of Terminator 2: The Ultimate Edition DVD, the second disc (or side) contains Supplemental Materials (or bonus features you'd find on a LaserDisc) which mostly consists of still frames with video clips. I can navigate them by clicking on the screen or pressing the Enter button but I want VLC to function more like a DVD player without skipping or missing video frames.

Is there anything in the Advanced settings that can improve the speed or cache of the DVD disc or ISO?

You should create a new report ticket on the VLC Trac with your above report, the link to your messages log, the EAN-13 / UPC codes of the DVD and the link to this thread:
https://code.videolan.org/videolan/vlc/-/issues