Decoding performance in comparison to vanilla protoc

Hi,

I switched to betterproto from the vanilla Google protoc plugin for Python. So far I am really happy with the generated API and the benefits that come with it.

However, I observed that the decoding performance of binary protobuf messages decreased significantly with the switch to betterproto. In my tests the vanilla protoc plugin was approx. 250-300x faster.

Is this a known problem? I have seen that there has been work on the serialize/deserialize performance (e.g. https://github.com/danielgtaylor/python-betterproto/pull/46) and that there have been benchmarks added to the betterproto codebase. However, as far as I have seen these are checking for introduced bottlenecks in betterproto commits and do not compare the performance of betterproto to vanilla protoc.

I would be more than happy if someone could comment on this. I would really like to continue to use betterproto but this performance bottleneck is currently a blocker.

Many thanks in advance!

Jan