This particular update is pretty large and not the norm, in the past it has been in the region of 100KB or less.
This and the 200KB to 300KB range is what I distinctly recall being mentioned here on the avast Forums in the past as the typical Virus Definitions Updates size. So yeah, 800KB and 900KB Updates IS getting up there.
Those BULK Virus Definitions Updates, which I get from MajorGeeks also seem to be gaining size more quickly than in the past.
But, it could be an optical illusion.
Well, no doubt my computer is not free from fault.
I'm sure my system contributes to the equation of the longer Virus Definitions Updates times, although it's not likely gonna take the entire rap.
Anyway, on the plus side, yesterday somehow my computer went back to recognizing my Flash Drive as Drive E: instead of the Drive F: that it had been doing recently. All I did was basically the same thing that I did when the issue first surfaced. Yep ... I just inserted a Flash Drive that I had just brought back from having used on my sister's computer.
Anyway, THANKS for the Info on the Virus Definitions Updates Sizes, guys!