Using the JP8 template on Origin Desktop with only one oscillator audible, both filters open and PB depth set to 3, I tried making fast, full scale pitch bends on a MIDI controller (GEM S3). This caused clearly audible artifacts, probably some kind of quantisation artifacts. When I did the same test (via MIDI from GEM S3) with a Nord Modular G2 there were no artifacts at all. If time allows, I'll post a recording of the PB artifact later this week. It's not a very nice sound.
Does Origin smooth incoming MIDI PB?
Are any other MIDI input event types smoothed? AT? CC?