reducing lag with actor groups

 One of the reasons why Stencyl-nator has almost abandoned Stencyl is due to lag with many actors on scene without behaviors . However Stencyl-nator has recently sort out the lag by minimising the collision relationship between actor groups. 

The real reason for lags is due to default settings where 
default actor group is "Actors" and they are set to be tracking each other with collision relationship

To compensate the need for the collision relationship, users can create new actor group otherwise, an actor group that has no collision relationship with anything else such as buttons.  

for more details,  https://stencyl--nator.blogspot.com/p/reducing-lag-actor-groups.html