While I don't think that there are a lot of ECS libraries with a similar feature set, it is important to know where we are at performance-wise. A bulk of features is useless if we perform horribly!
Problems:
There are no stable TS-only ECS libraries
JS ECS libs are sparse
Comparing this implementation to a compiled one (like SPECS) is unfair, however intriguing.
While I don't think that there are a lot of ECS libraries with a similar feature set, it is important to know where we are at performance-wise. A bulk of features is useless if we perform horribly!
Problems: