Please try to use an emulator that is close to the performance the game would have had on some contemporary real hardware. Mini vMac running at 1x seems pretty close.("Mini vMac estimates execution time using a table of average number of cycles for each of the 65536 primary opcodes.")

Timing is RTA from the frame when you click to confirm character creation to the frame where the victory condition appears.

Wikipedia claims that both versions of The Dungeon of Doom are identical in terms of gameplay, so I've lumped them into a single version. If there are actually relevant timing differences, they could be split apart.