There are other flight sim packages that work better for R/C. The most confusing thing is when the plane is coming toward you. MS flight sim is very realistic but does prepare you for thinking backwards. You are always in the cockpit or the same when the plane is headed away from you.
I use FMS which is very good and free. Of Great Planes G2 is excellent but so is the price.

Use some R/C software and see if it feels different being a stationary pilot.