Ah ha, you've caught me Syl! I was just taking a peak at the newest run, but don't have time to watch it all yet. (He is a friend of mine from college, so I had the inside line on his ideas for trying this.)
So I've now taken 3 attempts at this, but have a few differences to contend with. Specifically the fact that I'm still on the Legacy version, and so cap at 4x speed in battle. (Also my new hires come in at level 1 always.) My first two tries both came in at about 2:20 (though the second one, the first one I "streamed" had a lot fewer fails/partials) and only on the third attempt did I make the 2:02 mark.
The first try does have a neat start even though I spend too much time later on grinding. I think it is correct because it allows getting the +14 bow right after receiving the heal spell, which is the earliest it could possibly be done I think. In the video I describe it as a bit of showboating, but once you know the targeting configuration to use I think the burst power of the 14 bow makes up the time in the next level or two.
( is at: https://www.twitch.tv/et11235813/videos/all )
I had a massive advantage initially due to my longer experience with the game, but I'm not great at thinking "fast" - both in that I move and think a bit slowly (if deeply... I hope), and that I don't understand as well how to optimize for speed (I've never tried to speed run anything before). I knew it was only a matter of time till I was caught, but was surprised and rather delighted that even with my Legacy build of the game, and a matching "Legacy brain", the game was curved so well that experience and knowledge were more important than raw speed.
I knew I never had a chance of keeping up once Syl sunk his teeth into it though, so I rather doubt I can catch him again... but maybe my opening "script" and a few other ideas will prove the fastest.
Splitting points across multiple spells is an idea I hadn't thought of though - I'm so used to slow play "max power" that I never really considered anything other than frenzy till it was maxed, since in a linear type playthough you need to learn when to time it for each level to burst down the biggest HP slug that is incoming. But that might well be overkill in this setting, which is a neat idea I'll be pondering.