Applying the patch and then rendering without touching anything I get
the same result as before: twice as long and 4.7 MB in size. The
default is: compression_level=5.

Applying the patch and then varying the render parameter (compression_level=0):

0.664 sec
13711 fps
44.6 MB

Good thing to have introduced the render parameters (well explained)
so that the speed/size choice is left to the user.
Thank you.