One of the best things about DLSS, or any upscaling tech for that matter, is the ability to adjust it to your preference. The image quality difference between Performance and Quality can often be dramatic, as it substantially changes the resolution of the game running underneath. The more pixels for the upscaler to work with, the better the graphical quality overall, for the most part. But if you want more performance on less-powerful, yet still-supported hardware? Simply back it down towards a lower setting.
Which is why it's pretty astonishing that Ninja Gaiden 4, the latest entry in the long-running series, has reduced it to a simple enabled/disabled option. As spotted by X user @Sebasti66855537, a thread on the Steam discussion page highlights the issue—and has received a disappointing response from the developer.
