I thought that limit was removed? Is there another place? I need x8 or x12 or even more
Sure. From the free VP17 Users Manual:
Preferences - Editing Tab > “Choose a setting from the drop-down list to set the speed that will be used for scrubbing the timeline with the JKL keys or with a multimedia controller.”
If you need more you can always use the velocity rubber band, which goes up to 10x higher still. If being non-destructive isn't important, you can also ctrl+click & drag the edges of the clip to speed it up even more.