Regarding the skipping issue, did you try this: MMAL Skipped frame or judder every few seconds - #15 by kartana
Edit: this probably only works for the RPi. I’m sorry for ignoring the Vero tag in this thread! 
Regarding the skipping issue, did you try this: MMAL Skipped frame or judder every few seconds - #15 by kartana
Edit: this probably only works for the RPi. I’m sorry for ignoring the Vero tag in this thread!