id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
26561	SelectBox Too Slow With Thousands of Options	David Sanders	nobody	"There's several tickets and patches over the years regarding this, but nothing has come of it, and it's still slow after 9 (!) years. The last ticket I can find that made meaningful progress on it was #3202 which itself was closed in preference of #15220 rewriting it to jQuery 5 years ago, which had some work as recently as 9 months ago but then teetered out.

IMO this issue shouldn't continue to be kicked down the road, and a patch should be accepted for improved performance even if it doesn't close #15220. It's not an easy problem for third-party apps to address and when it gets slow it gets too slow to function.

I'm providing a pull request with changes that greatly improved performance in my testing with 20,000 items. It's still laggy but that's to be expected, and the goal here isn't to make it smooth as butter, but functionally useable for users."	Cleanup/optimization	closed	contrib.admin	dev	Normal	fixed	selectbox admin many-to-many m2m		Accepted	1	0	0	0	0	0