MSFS24 - keep mouse cursor active

I have been experimenting over the last few days to get the best smoothness in MSFS2024 - particularly since I am using head tracking. One of the things that seems to work well in general is frame gen (using an 4090 here) but X2 lossless scaling, where I have a good balance of clarity and ultra smoothness when moving my head. However, only issue I have that this seems to only work when the mouse cursor is active - as soon as it goes away it looks as if lossless scaling does not recognise the FG generated frames anymore. Initially I thought this had to to with the screen losing focus - but also if I click the middle mousewheel to pan around (and the cursor disappears) I am seeing the same effect. I'd rather keep the mouse cursor on the screen and have the smoothness - anyone know if there's a way of achieving that, or to avoid this issue altogether?