@Kaioh1985 and @DJAlucard
Could both of you please provide a savegame with easily repeatable instructions so we can reproduce the issue.
I'm unsure if a save game will help. Pressing the activation key seems to not enable the speed option. I have tried rebinding the key, as well, and the issue continues. As I said before, it's not a huge deal. I'm still happy with the trainer.