Last season his pass rushing was way better than decent.
No his numbers were better than decent, however all those numbers came once Suggs was back to take some of the attention away from him. He had some skill, but not to be an every down pass-rusher at this stage. Unfortunately for the Browns (and fortunately for Kruger) they paid him like they were getting a top-flight pass-rusher, but that's not what Kruger is right now.
He could become a top level pass-rusher, but right now he needs another dominant guy on the defense with him to let him be successful.