Hello,
If one device is going much faster than the other, it could be an issue of their PPQ (pulses per quarter note) settings being different. It sounds like maybe the Beatstep has a higher PPQ than the Pam's, so the Beatstep it outputting the clocking pulses faster than the Pam's is expecting them at any given BPM. For example, if the Beatstep is outputting 24 PPQ and the Pam's is expecting 6 PPQ, the Pam's would have a BPM 4X faster than the Beastep. I hope that is helpful!
Edit: I should add that the PPQ settings should be adjustable within each device. They're generally not permanently fixed parameters on modern devices. So you would just have to adjust the settings so that the PPQ matches between the two devices.