This thread was originally from early 2013 and things could have changed significantly since then. Please post a .capx demonstrating the issue so I can take a look.
Thanks Ashley for your response. You can take a look if you own an iPhone or iPad. Download from App Store any game that has been made 2013-2014 with C2. Play it for a moment, observing the screen. All moving objects stuttering a little bit. I don't know there are the same problem on Android, but it exists on iOS. I have looked at this a long time, tried a different iOS games in 2014.
However, I think C2 is a very good tool. I would like to buy a license for business, but I do not do it before I know that Scirra know about this problem, and try to fix it. All the best and keep up the good work!
For example: Bee Active, Hungry Hal, Star Nomad, Swing Parachute, Flappy Family, e.t.c.
These I remembered first. Looks good, but when you look more closely ...