michael-s-molina commented on PR #32520:
URL: https://github.com/apache/superset/pull/32520#issuecomment-2736263055

   > As far as I can tell even if you have 10k metrics they are all included in 
the response, and the frontend does the pagination/search, is that correct 
@michael-s-molina?
   
   Yes, the metrics are all included in the response and there's no pagination 
made by the frontend. It just renders everything without pagination and 
virtualization. Apart from that, another huge problem of that module is that it 
sends ALL columns/metrics to server side when saving instead of just sending 
the delta which is really inefficient. To put this is perspective, it takes 
more than 30 seconds to load that screen for our biggest dataset and more than 
a minute to make changes.


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