Every time you want to type in a product by name, you must endure a 2 second slide-in of the keyboard before you can start typing on it. It's so slow that I feel that I could have completed the search and started on the next item before it's even done animating, if there was a way to disable it.
I sincerely hope employees don't have to use systems like this all day that reduce their throughout by more than half.
But me, being a bit more pragmatic, instantly benchmarked it, saw the search backend was responding quickly and it was just the animating menu that showed the results that was slow to animate. I changed 1.6 second animation to a 0.2 second animation, a change that look maybe 5 minutes to benchmark, find the code, and then change it,
The tech manager refused to accept that the solution was that simple, and only confonted with irrefutable evidence (direct client feedback AND benchmarks that showed that the search backend was already fast) that he accepted.