I've identified a leak in there. In my small test of running a script with 20 objects or so, it added up to around 1.5 kb. We are now in code freeze for version 14.1. So this will have to wait until 14.2 betas begin.
I'll compare 13.3 to 14.1 for you and let you know the results tomorrow. Hopefully 14.1 will be better than 13.3. I know I've fixed a lot of other things.