I'm surprised at all the "200ms is slow" comments. I make many purchases online, don't we all? I can't remember the last time one took sub 1000ms; they usually

I'm surprised at all the "200ms is slow" comments. I make many purchases online, don't we all? I can't remember the last time one took sub 1000ms; they usually take several. What are some of the websites you purchase from that truly complete a purchase in sub-200ms?