So, @mbucchiahas worked his magic yet again, and released a wrapper for Varjo Base that effectively stops the advertisement of the headset as supporting QUAD. The upshot of this is that you can now use the new DCS native OXR, OXRTK (if you so wish), and the offset cursor in the cockpit that has plagued us for a long time is fixed.
Turbo mode now appears to work if you are running OXRTK 1.2.4 so give it a try and see (YMMV).
The wrapper can be found here:
https://github.com/mbucchia/OpenXR-InstanceExtensionsWrapper/releases
Follow the instructions exactly! And don't forget to start DCS.EXE --force_enable_VR --force_OpenXR and disable OpenComposite if you were using it previously
Based on my limited testing, I am actually seeing a 2FPS increase in performance over using Open Composite.
And remember, a Varjo Base update will very likely overwrite these changes, so you'll have to redo them, or preferably use a Mod Manager to apply and remove them.
Enjoy, and thanks to @mbucchiafor getting this sorted in less than 48 hours!