ISSUE Cadence and Wattage in ERG Mode smartframe elite direto xr

When I use the ERG mode during training, I can’t maintain the cadence indicated by the application.
What happens is either I have a low cadence but the correct wattage, or I have the correct cadence but the wattage is too high.

I’m using an Elite Direto XR updated to the latest firmware, connected to Zwift Smart Frame Cog V2.

What could be causing this issue?