Presence is heavy taking lot of cpu usage

[nishant378]

Using synapse v1.65
When I try to use presence for less users(for 10-15) it's working fine but when i try to use presence for 1000+ users than cpu usage becomes 100% and my application stop working. When i make use_presence: false in homeserver.yaml than application start working.

homeserver.yaml
use_presence: true

workers

1. generic_worker1.yaml
2. generic_worker2.yaml
3. generic_worker3.yaml
4. generic_worker4.yaml
5. additional1.yaml
6. presence.yaml

[H-Shay]

Unfortunately this is a known issue which we are working on: #9478. As such, I am closing this as a duplicate.