I currently have to edit some very large XML files, which slows down syntax highlighting to a point where it’s absolutely unusable – it takes multiple seconds to update the screen after a search operation, for example.
When disabling syntax highlighting (:syn off), the same operations happen instantaneously. Unfortunately, disabling syntax highlighting appears to happen globally, so all other files now have it disabled as well.
So: Is there a way to only disable syntax highlighting for a given buffer?
You can set
:syntax manualand then enable it withset syntax=ONin the buffers you like. Also see:help :syn-manual.