Hi,
You will probably need to be quicker hitting the key for Bios.. You might check to see if there is more than one key that will work.. Mu older Gigabyte board will accept both F2 and Del.. I can hit Del quicker.. You might start tapping before you ever see the screen..
I had a HP laptop that was so quick that it was almost impossible to enter Bios.. After many, many tries I finally got in.. I found a setting to delay the Post Screen for 5 seconds and that resolved the problem..
You might also try turning off Fast Startup in Windows.. It may cause a slight delay in the time you can see the Post Screen..
This feature only works when you do a SHUTDOWN and then Boot.
It doesn't effect a RESTART.
To turn it off or on...
Go to Control panel...Power Options, and select Choose What the Power Buttons Do on the left.
Then select Change Settings That Are Currently Unavailable near the top center of screen...
Lower down on the window, uncheck Fast Startup.