I'm having trouble with choppy mp4 output.
The original (four) files were .mts format, which I transcoded via Handbrake to create mp4s. I did this to avoid editing the mts files in HitFilm, which results in unworkable lag.
Both versions (mts and mp4) of the four files play fine in a variety of media players.
But when I bring the mp4s into HitFilm, edit and export, then result is a jumpy mp4. I've right-clicked on the files to establish the details and have made sure the HitFilm's project settings correspond (1920x1080, 25fps), but no dice. The resulting export is very choppy.
Grateful for any advice on this one. No doubt I'm missing something obvious.
Thanks in advance.