Ultimate Performance isn't currently available for laptops or tablets, but Microsoft suggests that could change.
There are additions for people using everyday PCs. Like Samsung, Microsoft is moving toward more familiar emoji. It also helps you search for those emoji in more languages, and provides you more control over file system access for Universal Windows Platform apps. As a rule, though, this preview is aimed at pros who want to see how well a workstation can run when there's nothing holding it back.