Negative G causes FPS to rise substantialy

[palker4]

Today i was flying quick mission Bomber intercept Hawkinge and i have noticed a strange phenomenon that when i push my stick to neg G so that my engine start loosing rpm my FPS will increase from around 25 to 60 and i was wondering how is this even possible.
There were 8 Ju-87s and 6 Hurris in that mission. I used fraps benchmarking tool to create FPS graph. Take a look every single spike on that graph is cause by me pushing stick forward.

[Wolf_Rider]

did what you were looking at change?

[louisv]

Palker_4: ...i have noticed a strange phenomenon that when i push my stick to neg G so that my engine start loosing rpm my FPS will increase from around 25 to 60 and i was wondering how is this even possible.

Push my stick ...so that my engine starts loosing rpm...

Could you expand on that, usually if I push the stick, it does not have the effect of lowering the RPM...

[recoilfx]

I wonder if this has to do with the engine exhaust fire effects - In the first release, when player gets close to the bombers, the fps will drop immensely, apparently it was because of effect was on for all aircrafts.

In the later patch, the effect was only enabled for the player. I'm guessing that when the engine gets cut out, that effect is not rendered.

[palker4]

Originally Posted by recoilfx

I wonder if this has to do with the engine exhaust fire effects - In the first release, when player gets close to the bombers, the fps will drop immensely, apparently it was because of effect was on for all aircrafts.

In the later patch, the effect was only enabled for the player. I'm guessing that when the engine gets cut out, that effect is not rendered.

That could a reason i will try to turn of my engine in flight to see what will happen

[palker4]

Its definitely the exhaust effects i turned of my engine and FPS ad least doubled.
Is there any way to disable this effect without going for effects : Low?