Thanks @ltf for posting these details
Accessing the web app through URL with this format
may result in UI lag. Please see Web UI won't load - #2 by wtempel for possible workarounds.
To help us look into a possible connection of the defunct python process to the UI lag, please can you share the tgz file created by the command
cryosparcm snaplogs
with the CryoSPARC developers.