Conda run seems to be very slow

• Possibly because conda run is slow
• Or we have python extension running conda run for all conda environments and we're running as well
• Or other

@rchiodo @IanMatthewHuff You might recall, that running conda activate on CI can cause issues specially when run in parallel.
And we have code that retries the activation (basically conda isn't designed to activate multiple environments at the same time, due to some file locking issue).

Hence I believe using conda run in parallel (in python extension & then also running in jupyter) could be causing issues.

This is all hypothetical.