I didn't expect anyone to be able to complete it faster.

If you run a hundred meters in 13 seconds, that doesn't mean no one else can do it faster, especially someone with experience. You can always ask yourself: "If I ran it in 13 seconds, could I do it in 12.9?" The same applies to Heroes; if you complete it in 34 days, think, could you do it in 33?

In general, looking at the map, with a good generation and easy level 7 monsters, you can complete the map in 2-3 days. The easiest way to complete this map is to get the Angel Wings (random artifact level 4) from random level 6 monsters (ideally, get the simplest ones, probably wyverns) and fly over to the computer through the stable. But this will probably only take 4 days. Along the direct route, it should be faster, but you need to think about it a bit.