Not sure if you're still working with the Vyr's build, but I've got a couple of tips.
I'd recommend switching either teleport or frost nova for Blizzard with Snowbound rune. While casting Arcane Torrent, spam Blizzard. It will constantly cancel Torrent's animation and greatly reduce your downtime between Archons.
Since you've got a furnace cubed, you can switch your +% elemental damage to arcane and use a Moonlight Ward.