If I should take the photos out of the albums, would a sheet-fed scanner be faster than a flatbed? I have a flatbed (correct term?) scanner, but it's slow.

I have a SCSI HP Scanjet IIcx stored somewhere. That's faster than the Canon I have now, but it's obviously much older and its advertised resolution is lower. I think it was 400x400 back in the early '90s when it also cost $1700. Is that high enough?