I'm just generally not a big fan of "X is some percent slower than Y" stats, because I find them counterintuitive. However, in this case I think something is wrong.

Rendering:

  jsblocks: 700ms
  React:    950ms (35% slower)
  Angular: 2200ms (310% slower)

Doing some maths:

  700ms + (700ms * 0.35) = 945ms
  700ms + (700ms * 3.10) = 2870ms

Looks like they got a little carried away when calculating Angular's rendering speed. Same thing with the "Syncing Changes" stats.

Edit: formatting