Another way (which happens to be correct) to say tenth of a second is 100 000 000 (one hundred million) nanoseconds. You were off by a factor of 1000!

Yeah, I skipped microseconds entirely.

Also, at a typical turbo speed of 5 GHz you get half a billion clock cycles and multiple instructions can be retired per clock for about one or two billion total in those 100ms.

That’s about 1,000 instructions per pixel of the Start Menu!