Limit the Grooming Settings or improve database indexes
I think it would be very useful to limit the groomig settings to X days or improve to have better consoles performance.
We had a critical problem (all consoles performing very very slow... eceiving timeouts... hanging...) and it was only because a 30 days database configuration for "State change events data".
Kevin Holman commented
The default for SCE is 7 days, and you can already adjust this to less in the SCOM console.