According to the Dev of Ants Drifter Ultralight
props are capped at 18fps. No wonder I’ve always felt they seemed lackluster. I believe DCS spins their props faster as theirs certainly look smoother.
Would be nice to see them at least at 30fps, if not 60fps one day. May not be a priority these days, but for me, a serious external view bird watcher, I would enjoy the smoother animations!
Here’s the portion of Ants Drifter Ultralight Change log where I read the info:
v1.12
- New smoother propeller animations. Recent testing has shown that the default code for prop animation operates at only 18 fps. Custom code in the Drifter now animates the props at the same rate as the sim which produces smoother animation.

Maybe one day!