Maybe it's just a personal thing, but for myself at least it's incredibly frustrating to have a really fast lap that feels like I'm about to break a record completely ruined because of a blind corner where as soon as I make the turn "BAM!" another car is there for a head on collision bringing me to a near standstill deleting all momentum and completely ruining the lap. Like I seriously cannot overstate just how often that exact scenario happens. Or how often a car just so happens to block the intersection for a turn juuuust as I get to forcing me to either slow down entirely or crash into them, ect. It would be one thing if there was a degree of determinism to the traffic patterns during the races, so I could at least then plan for it, but it being totally randomized isn't very enjoyable to me personally, at least not for a mode that's all about trying to get the best possible time.
I've only played the game on browser so far. Last time I checked PICO wasn't free to download, but I'm not actually sure if that means I can't play games released for it without owning PICO itself, so I haven't even tried the download version.
Also, I was able to get my Downtown time to 26:09, just short of getting a gold time. I've been able to get silver in every race I've tried so far, but for some reason the gold times always seem to be juuust out of reach.
Edit: As a side note, I've been playing this a bit more today and haven't yet experienced the turning/key press issue that I did before so it's possible it was just an issue with my keyboard, maybe it wasn't plugged in all the way or who knows, but either way it appears to be fine now.