Stuttering when dogfighting

[MADLOU1]

I play this wonderful campaign in 2d.  With my rig, I have no problems with any stuttering or slowdowns when the 70 bombers show up and drop their bombs ( I know you recently optimized this which really helped).  I can run this and all the other DCS campaigns I have including yours with totally maxed out settings on 2d without a hiccup.  But for some reason, whenever my flight dogfights enemy fighters, I get constant stuttering which kills the immersion for me and makes the campaign unplayable for me.

I noticed you had some stuttering when you were dogfighting in your youtube video of the channel map mission.  However, your stuttering was not as bad as what I am experiencing.

Any thoughts?

[Reflected]

It's some sort of DCS bug, I already reported to ED.