According to the manual for the Yamaha USB Mixing studio 8cx it does NOT support ASIO. It’s a 2 channel USB windows audio device. This means it doesn’t support ASIO drivers directly and instead uses Generic driver which bridges over to Windows.
The manual seems to suggest you should try using the ASIO DirectX Full Duplex driver, this may have lower latency with your mixer than the Generic driver and is likely installed when you connect the mixer to the system or is supplied as a separate item or download. You would need to check the manual and/or Yamaha for this driver if it isn’t already on your system.
ASIO supporting audio devices have specific drivers from their manufacturer. The Steinberg USB Driver works with the Steinberg audio devices like the UR22, UR44, etc. ASIO drivers generally have much lower latency than the Generic driver bridging to windows.
Depending on your particularly recording style and use you may find the latency you have is sufficient for your needs.
What you can be assured of though is everything is working as it is intended to work (including the not working Steinberg driver since you don’t have a steinberg interface).