You could use a different profile for the two scenarios as each can have a different advancedsettings.xml but I agree something like that would be great, e.g. if you have a TV + projector setup with different latencies...
Addons I wrote &/or maintain:
OzWeather (Australian BOM weather) | Check Previous Episode | Playback Resumer | Unpause Jumpback | XSqueezeDisplay | (Legacy - XSqueeze & XZen)
Sorry, no help w/out a *full debug log*.