If I have to guess, I would say you're trying to fit everything in one view, without having to pan around the cockpit. I can't say I'm sure what you are saying with other add ons, because the field of view is universal. Nothing in the TBM, regarding the field of view, was touched. The top image you posted is exactly what you are meant to see. If you are using Track IR, the view should pan around without issue.
Fitting everything, obviously requires a field of view adjustment, but it will distort your view, as is evident in the 2nd picture you posted.