The problem

Since the update to the 6.0 and also 6.1 my dashboards are very laggy, sometimes displaying a value is also empty.
Most of the time I have to wait up to 30sec until graphs are displayed.
CPU and Memory Usage seems OK.
When I do a fresh restart, it is OK for a while, but after some time it lags again

What version of Home Assistant Core has the issue?

2025.6.1

What was the last working version of Home Assistant Core?

2025.5.X

What type of installation are you running?

Home Assistant OS

Integration causing the issue

No response

Link to integration documentation on our website

No response

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response