That's fine, but can we at least get some support by Scirra team, confirming similar finds and raising issues in other places, about this?
I think it would be in the interest of Scirra that games created with your engine will run smooth for casual players, on laptops, and lower spec machines on "recommended" power saving modes etc.
It's pretty bad marketing if a new potential C3 dev customer, opens C3 for the first time, tries some templates and notices janks and stutter previewing a simple built in template, on a laptop for example.
That's exactly what happened to me, when I demoed C3 for peers and team, trying to convince them to invest in a few licences for work. I was demoing some small projects i made on battery, with recommended power setting, and they asked:
-"what's all the jank about"? ,and that's why i started this thread for further investigation
Or games exported still with C3 logo showing at start stutters for players on sites like kongregate etc.
Plugging in power, and changing power mode are not obvious fix.
I would probably also investigate if other engines have similar stutter, and If they are doing anything to mitigate it.