How did you read that into what I wrote? According to Steve Souders (YSlow), 80% of the time spent waiting for a page to load happens on the client. Rails makes

How did you read that into what I wrote? According to Steve Souders (YSlow), 80% of the time spent waiting for a page to load happens on the client. Rails makes it really easy to cut down significantly on that time. The question of server-side performance is entirely orthogonal (and not actually a "problem" for Rails at all; Rails provides significant server-side performance tools as well).