3 ms·
200x slowdown is only a problem if you're running a script that requires a lot of computation. js.js seems directed at things like ads and other widgets, which
by danbmil99 15y ago
200x slowdown is only a problem if you're running a script that requires a lot of computation. js.js seems directed at things like ads and other widgets, which often are just doing a bunch of easy, boring DOM things and can in fact still function fast enough to not annoy the user, even with a big slowdown factor.
Also, as they say they just got this working. It seems reasonable to assume that with enough programming mojo, the slowdown could be something closer to 10X or even 5X.