[2166507] The loading time of Virtualization -> Overview -> Settings page is a bit longer

Description of problem:
Go to Virtualization -> Overview -> Settings page, it takes a few seconds to get the data loaded, sometimes it's over 10 seconds.

Version-Release number of selected component (if applicable):
v4.12.0

How reproducible:

Steps to Reproduce:
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Actual results:
The loading time of Overview -> Settings page is too long

Expected results:
The Overview -> Settings page is loaded in a normal time, just like other Virtualization pages.

Additional info: