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.