But generally DX11 games have two main programs, one dx10,one DX11, so you can still play them by running the dx10 main program. Just like dx10 games, there are usually two main programs for dx9 or dx10.

Some games have only one main program, but it also determines the run mode depending on the dx supported by your graphics card.

The graphics card is not powerful enough, it's just a card, all dx10 effects are shown, of course DX11 effects are not shown at all, after all, they can't be run through dx11 mode at all

By the way, what's the model number of your graphics card?