Trying another run again, and good Yoba, hope I don't screw up again and take the ladder UP by accident. That was PAINFUL after spending probably two real-life hours on it
Think I found out why the game was seemingly lagging before. Suspect I was simply going through the motions too quickly, i.e. pause->unpause, so my fairly old computer didn't have time to load in the room properly. Difficult to get into the mindset of trying to wait, because your mind is fixed on trying to do everything as quickly as possible. Only just got started, but had a really nice run between 6:30 and 6:40. Managed 59 floors (63 to 122). And I had to hack away a rock twice, hack a barrel once, plus had a couple missed pauses (pause too quickly). If I could stabilise at 50+ floors per tick, that would be very nice pace compared to my earlier attempts.
People probably differ here, but I've found it better to use default zoom settings when descending floors. Yeah, can't see anything around me really, but the pointer is a little bigger, so it's somewhat easier to see whether the tile is outlined in red (invalid) or green. However, if you nail the timing pretty much perfectly, I really can't tell either way.
Haven't tried the stairs trick in the desert, Emily and Sandy will probably mess it up anyway on Sandy's birthday. But if I don't misclick too badly, I can get to the chest by the farmhouse bed, drop tools and pick up a desert totem, use the totem (need to sidestep a little or the idiot keeps opening the chest again), then eat spicy eel + espresso, run to the cavern and do some more changes in the chest there, and get inside the cavern at some point during the 6:10 tick. Which on this occasion meant I was able to get to floor 63 by 6:30. Couldn't have been much left of the 6:10 tick, but if all the stars align, there is the full 6:20 tick.
Plan is to get to floor 1000+ before starting to use the slingshot/mining, as I'm trying to get better at that. Prismatic shards basically don't matter any more as I have almost 20 candies in the cavern chest and over 100 shards left on the farm, but hopefully I can get a full stack of gold and at least two stacks of iridium ore. That should set me up for a while with crystalarium production (and money for bars).
Once I'm ready to start mining, will change zoom settings to 75% for a better view (although it makes using stairs more awkward).
Another small thing, that
@FilthyGorilla touched upon before iirc: I prefer to have the pointer left or right of the character when descending floors. The main reason is that there are quite a lot of floors with stone tiles on the floor, which distorts where your ladder is placed if you try to place it on top of those tiles. But left/right is usually safe. Treasure floors for example often have this crap going on. Monster invasion floors are fantastic, because there are usually no obstacles there, so you are safe to place a ladder almost anywhere.
(Gosh, looking at that picture again, hope I didn't bring too little food. Low on sashimi I see.)
PS: I'd love to see runs from other people too
Edit: What the deepest of hells?!? Got 75 floors between 7:50 and 8:00 (from 515 to 590)
Kept making a lot of mistakes, think my head was fatigued. Too quick and you miss the pause, and that's probably 5 floors 'lost'. Took a little break and made another cup of tea :D
Overall had "only" 54 floors per tick between 8 and 9 o'clock, but the last tick was rather good at 69. When you are fortunate and don't need to move the mouse pointer much, and aren't locked in between rocks, nodes, tiled floor, etc, it can get quite nice. But the timing is
sooo, soooo important. If you "see" the floor loading before reacting, you are too slow. Gotta get a feel for it, yet not do it too soon either. When everything is pretty much perfect for a tick, I can pull off ~70 or even 70+ that one time. It has ticked over to 9:00 and the dude is on floor 914. Faster than the 2-3 other dives I've noted down times for, because the average is faster, and the peaks a little higher too. Haven't written down for all ticks this time, but going back to 6:30, the pace is slightly under 57 floors per tick, so the worst ticks probably aren't all that bad. 40-ish maybe?