I see that,firstly, I had NPI 2.4.0.08 which didnt have exactly the same editable lines.In NVidia App,I changed the settings for DLSS overide to"Use the 3D application setting".
After a lot of back and forth I now have DLSS 310.4.0 with preset K. So far I dont see a difference in graphic quality,although maybe(wishful)a bit less shimmering.
Thanks for all the helpful replies.