High amplitude of trainer power control

After installing the new version of the TD app, I decided to try again to connect the smart trainer (ELITE Justo) via the ANT+ protocol. I noticed a certain irregularity, namely the undulation of the trainer load. This is visible in the training graph. You can also see how the cadence changes under the load. I’ve brought the training to the end (HR mode). Then I changed the connection to BLE and there was a significant improvement. Power control is as expected. This second attempt took only 15 minutes to confirm my suspicions.
Here is the activity through the ANT+ protocol:
Trainer Day - Activity Detail

Here is the activity through the BLE protocol:
Trainer Day - Activity Detail

I would like to add that it was the same on previous versions.

TD 4.2.7, Samsung S20@Android 13, ELITE Justo v15