I could never find out what magic keyboard does, i do not have it installed and speed up still works but it is an odd bit of software
As a note samsung update plus is next to useless, i had it on my samsung r700 and it never found any updates yet the website did have updates.
And even worse the only way you can check if there is an update on the samsung site is to compare driver number against that in device manager. They replace the update date on their website couple of weeks or so except firmware even when theres no actual update