Here's a high-dps variation of the Critical Mass / Energy Twister / Explosive Blast Windup Wizard build. It takes a total of 90s from loading into the Imperial Palace title at 0:43 to the kill flash at 2:13. And yes, there is a death during that minute and a half!
This is a comparable time to this video of Athene's Demon Hunter which is the fastest I found on YouTube. His time is 5s longer at 95s using the Imperial Palace/kill flash at 0:06 and 1:41 as boundaries.
Defensive skills are out, so no Energy Armor or Teleport. They're replaced with two DPS buffs, Force Weapon and Dartling Familiar. Mirror Skin is used rather than the more defensive Crystal Shell to reflect damage back. For passives, Critical Mass is joined by Cold Blood and Glass Cannon. Buffed DPS is 68k.