Thanks for fixing the ordering issue!
=> This is good to know
“On the good news side, I'm working on an 'instant' feature for both search and autocomplete results, to bypass ajax search, if instant results are available.”
My server is a dedicated box with 8Gb of RAM and a cpu with 8cores, only running 22 activated pluigns which I think are not that many. So I think it's a good enough server. Also I'm only searching the title.