TL;DR: Today I’ve released a C64 tool: CBM Disk Transfer Benchmark.
Please don’t make any more YouTube videos measuring load times with smartphone stopwatch apps. Thanks!
Read below for my ruminations.
The 1541 disk drive that my family got along with a Commodore 64 and 1702A monitor was slow. Really slow. The slow speed of the 1541 disk drive is legendary. I won’t go into the whole backstory from Commodore, but what it meant in my house was that most of the games we had on disk took a very long time to load.