Hi Rallik, that's a really weird issue, please try switching your browser and make sure to be using the latest Adobe AIR version on your browser (should be AIR 24) you can check it here: https://get.adobe.com/es/air/ Do let us know if you still find issues after updating to that version by sending us an e-mail to support@frozenshard.com Kind regards,
When you say laggy, do you mean in general, or on a particular page? And since which version? (I actually released four different versions yesterday)