Things really did improve after I switch off WebGL. I'm maintaining about 25FPS and the game is playable though not too smooth. I did take all my collisions and put them in a deactivated state and set and overlap at a distance of -15px and +15px X and Y to activate/deactivate. That did work and Im sure when more enemies are on the screen it will help but there was no discernible improvement in FPS.
Im going to add some speed to the controls to see if that makes things seem less slow.