Hello,
Several questions :
- Do you experience this on every preview browsers ?
- Did you test it under export, NW.js included ?
- Have you got two graphic cards, dedicated and integrated one ? If so you should set the right one for each program in your graphic configuration.
- Do you develop from a laptop computer ? If so, verify the power settings. Sometimes it switches to low power settings if plugged/unplugged and send less power to GPU and CPU.
- Do you have a lot of iterations through objects (loops) that occur each tick in your C2 project event sheets ?
- Did you look at the number of objects being created while debugging ? Maybe some objects are not destroyed.
- Are you on Windows 7 and not using the Aero (graphic interface) ? Rare cases where it prevent from using graphic acceleration.