The scanner is USB 2.0. I'm not sure if it would help to have USB 3.0. I think the majority of the time it takes to do a scan is the movement of the scan head and post processing of the image. The transfer speed may not take up a large portion of the overall scan time.
Hardware seems very capable; On 7200dpi scans you can see film grain sharply resolved; Great value as scanner comes bundled with Silverfast Ai
Installation procedure is confusing; Don't be surprised if you get a bunch of error messages; You can ignore/cancel most of them and keep going; You do not need to install the Presto! PageManager program; I have used both Silverfast and Vuescan with ths scanner without issues.