mvern9

I've been doing some tests with my XT2 (latest firmware) and while normal 25p 4k flog is fine, when I shoot at 120p (800 iso fLog) the picture quality is very noisy. I've tried external and internal shooting with plenty of light but the noise difference is still very noticeable. Should there be a marked drop in picture quality from 25p to 120p? Any ideas or help would be greatly appreciated. Thanks