Technics Ottava SC-C30 Bluetooth out of sync

[dedekam]

Hi, i connected my new Technics SC-C30 to my TV today. With Bluetooth activated the sound is heavily out of sync- any tips on how to adjust this? My old Marshall Bluetooth speaker did not have this issue.

My TV is a Samsung Qled, around 1 yr old.

Also, when connected with an optical cable, can delay in audio still occur?

Thanks for any help