V15 gives me a very slow timeline preview with GoPro footage compare to V14.
I've been trying with 2704x1520-30p & 1920x1080-30p&60p. It tops up at 10/12fps @ best full instead of real time with V14.
My GPU being too old (GTX570) it's turned off. It doesn't improve anything when it's on anyway.
The files are read by the new so4coumpound.dll . If I switch back to the original dll (cf. Nick's post), real time preview again.
Anybody else with the same issue?