Wow, you've made a lot of progress! The Hateful Reliquary chase is one of the hardest parts of the game. If you're still having trouble with it, an important tip to know is that moving diagonally downwards is actually slower than moving straight downwards. So the more you weave around the crystals, the quicker the Reliquary will gain on you. Try "changing lanes" as few times as possible!
Edit: I just saw your edit after sending my reply. Great job!! :D