A very simple very specific example where python can do tight loops faster than C# (.NET core) using the Numba library.
Project Euler 5: https://projecteuler.net/problem=5
Build and run
(cd dnc/cs && dotnet run)
Create virtual env
python3 -m venv numba/.venv
Install requirements
source numba/.venv/bin/activate
pip install -r numba/requirements
chmod +x numba/main.py
Run
numba/main.py