[snet0]

I do think it's something like that. Things can quickly get to the speed that feels "fast enough" that they don't feel subjectively slow, but can still be sped up by a couple orders of magnitude. If you Ctrl-F something and it takes a few hundred ms, you probably don't feel like it was slow, but in reality the "speed-of-light" for this operation was probably orders of magnitude faster than it happened on your device. Once you experience something close to the theoretical speed, it's really hard to go back to something you thought was perfectly fine before. And you start noticing that everything feels slower than it "should"..

I think of something like grep, where if I tried to grep a large hierarchy it'd be really slow and I'd sorta reason to myself "well yeah it's a lot of files in a large tree, of course it'll be slow!". Then I installed ripgrep and suddenly what I thought was a reasonable speed was shown to be unreasonably slow!