chopper and tremolo are lagging

HI all

I’ve been having some issues with the built in steinberg tremolo and chopper. I am using them with the sync turned on but the timing seems to be lagging. I have attached a sample of what it sounds like. Here the chopper is set to 1?8 notes which it is doing but it is not on the beat it is lagging behind.

Anybody know what might be causing this?
chopped-synth.mp3 (496 KB)