As in the title, the issue is that transformers seem to be blocked by running queries, even if they are completely unrelated.
Step to reproduce:
Add a transformer that returns some data
Add a table with the data being the value of the above transformer
Add an unrelated query that is slow eg. here it just waits 5 seconds on page load:
Now on initial load, the transformer will wait for the unrelated query to finish, leaving the table empty for 5 seconds.
The expected behaviour is that transformers should only wait the observed variables and ignore unrelated things.
One workaround is to not use transformers, for example using IIFE in the component