When the Unreal plugin of DLSS is enabled, if Vsync is enabled, it will cause a delayed rise

Is there any way to make them compatible, or how to set up the DLSS plug-in display to disenable?

I found that after I enabled the DLSS plugin packaging, entering the game should be the default DLSS plugin, because even if I did not call the NGX panel of DLSS, there will be an increase of about 20 latency, and I packaged DLSS, this part of my original game has no latency.