REST autocomplete very slow when having a large number of indexes/aliases

Hello,

I am noticing a case where the autocomplete section of the REST page (where the index / url is entered) it is very slow when accessing a cluster with hundreds of indexes (and even more aliases). It can take several minutes to load and makes the page hard to use.

It would be nice if this were faster, or even disabling autocomplete if the number of results is too large. Thanks!