Windows 95 could be very snappy... except when you started copying files to an external hard disk, or if your disk was too fragmented, or if you ran out of memory and things started being swapped out, or you had a buggy hardware driver, or you had a virus, or you had an antivirus program, for that matter...
I think there's a lot of nostalgia at play here. There's a lot of ways in which modern computing is far nicer than it was in the past.