this test should prove it.

install old webkit. search "seinfeld". select videos playable on google setting, then setting for only vids less than four minutes. go down list of results on first page. all play when given 10 secs or so to load (all except "seinfeld speech", which is no longer available. and remember to double tap to play dailymotion videos.)

now install new webkit and run down the same list. you'll see a marked decline in performance w/ several vids refusing to play.

or am i crazy?