Wer hatte die gleiche Frage?

Hello I recently bought the ERAZER gaming desktop MD34805.

Testing the i5 12400 performance on cinebench r23 multi thread is truly awful 5200 score vs over 12000 expected. Expected scores from here:

https://www.cpu-monkey.com/en/cpu-intel_core_i5_12400

https://youtu.be/4gv-_ItnWfg

This review of the MB suggests the latest gigabyte bios update solves a significant issue with the CPU results. They've had bios updates in both Jan and March 22.

I can't help wondering if the OEM firmware produced by American Megatrends haven't caught up.

Anyone have any other suggestions? 

Has anyone else had this issue? If not what's your cinebench score vs expectations with your medion desktop? Any tips /tricks please?

Thanks.