Redis Lock store takes approx 10sec to release the conversation lock

I am using a redis lock store, and a redis tracker store. When the conversations in the bot go beyond 300-400 the lock store is taking around 10 seconds to release the lock on conversation. Any reasons? It is significantly delaying the response time ahead.

You can see the time difference below

2023-12-01 09:44:36 DEBUG    rasa.core.processor  - {"action_name": "action_listen", "rasa_events": [], "event": "processor.actions.log", "level": "debug"}
2023-12-01 09:44:48 DEBUG    rasa.core.lock_store  - Deleted lock for conversation 'test_5961b97eb09f5a9f5a6b509649d5bf00db2347ef4041cb9bf8c8c7c9f175c5b7'.