Loading dropdown component with many items is slow

Similar to the issue described in #103, I am having trouble with the speed of very long dropdown lists (40k+ items). However, in my case it’s not the speed of searching the dropdown list (which has been solved in #103), it’s rather the time until the component is loaded dynamically.

Network issues should not be at play here, as everything is running locally.

Note the time between choosing to display the dropdown menu and the time until it actually shows up: (List with 100k items)

Minimal working example

minimal working example is here as a gist.

Dash versions

>conda env export | grep dash
- dash=0.35.1=py_0
- dash-core-components=0.42.0=py_0
- dash-html-components=0.13.4=py_0
- dash-renderer=0.16.1=py_0
- dash-table=3.1.11=py_0
- dash-bootstrap-components==0.3.0

[grst]

Just wondering… is there an alternative by now? This issue is basically the only thing preventing me to switch from Shiny to dash…

[anubhav-nd]

Hi, I am also facing performance issue with updating a dropdown with ~10k items. Has anyone solved this issue?