Frame Rate Surge?

[cuca]

I experienced something quite strange lately - during my quest for the optimal BMS config, I have tried and tested different things, posted a couple of questions in this forum (got some great answers too).
Generally, the conclusion was - the FPS that I get are reasonable and in line with what others get with similar equipment. If I want more, I’ll have to upgrade my hardware. (Which I will) So far so good.

Then, a few days ago, in my Test TE (TFR Training TE, sitting on the Kunsan RWY looking south), where I usually get around 37 FPS, i suddenly got 62 FPS!
Looking around in the Pit was so smooth, i could barely believe my luck

Now the thing is, I don’t know what was different from the other times when I test, if you ask me it was all the same. Next time i opened the same TE, same view, same setup, it was back to 37FPS again…

If only I knew how to reproduce this? Or could it be that the TE didn’t load properly and “forgot” a few things that normally eat FPS…?
(My PC gives me around 60 FPS in empty environments, such as dogfight module)