Flexi hair becomes laggy when camera is far away

[Elexis Reinard]

Hi!

 

In order to minimize the distortion of perspectives when filming characters, I uset the camera far away from the character (i.e. 30m) and compensate with a very low view angle (0.08).

Disabling the "dynamic level of details" allows perfect quality, but the animation of flexi prims (hair) becomes very choppy.

I can't find a debug setting that affect the flexi physics refresh rate vs. camera distance. How could this be achieved?

Thanks!