Bug 215045 depends on one bug:

•    215045: [GStreamer] Very slow when scrolling Divi websites [NEW; assigned to webkit-unassigned]
  •    280921: [GTK] Scrolling through Divi's features presentation page crashes MiniBrowser's web process, images stop loading [NEW; assigned to webkit-unassigned]

Bug 215045 blocks one bug:

•    215045: [GStreamer] Very slow when scrolling Divi websites [NEW; assigned to webkit-unassigned]
  •    245783: [GTK] Slow performance issues tracker bug (scrolling, animations, drag & drop, input) [NEW; assigned to webkit-unassigned]