My keyboard can't turn off 3 buttons at once?

I'm a big Roccat fan (own Roccat mouse / headset / keyboard) now. My keyboard is the Roccat Isku + Force FX. What I noticed, that I when I Play Fortnite (no hate please) and then sprint with CTRL, and W go forwards and then talk ingame (x) it does not work and i Stop having to go or sprint so press one key less so I can talk…

A gamer keyboard from Roccat that can only do 2 keys is nonsense. Do I have to stop something?

There's nothing to adjust. You have to buy another keyboard for it.