Unfortunately it is always going to be time consuming if you want to scan them well. Also, a scanner dedicated to photos/slides can be very expensive. Some flatbed scanners do a good job but they are no where near the real photo scanners like the
Coolscan 9000 etc
Do you have the film strip? Some scanners can scan multiple frames from a film strip.
If time is an issue, the best is to ask a photo store to scan them for you