We are still investigating, but it seems #368 has regressed as we are seeing large CPU spikes during nominal exception reporting in production environments. It looks like nuanced changes to sentry_sdk/serializer.py might be the culprit.

Since https://github.com/getsentry/sentry-python/releases/tag/0.13.5 or https://github.com/getsentry/sentry-python/releases/tag/0.14.0 don't seem to address any performance issues we may have to revert back to 0.8.0 in the mean time.