https://www.techspot.com/news/78799-nvidia-acknowledges-dlss-shortcomings-working-fix-them.html
 
Through a Q&A post made by Andrew Edelsten, Nvidia's technical director of deep learning, it is shared that DLSS for resolutions below 4K is going to receive significant attention. Gamers taking advantage of the latest Battlefield V update that included DLSS support have reported seeing blurry frames on occasion. In response, Nvidia has said, "We have seen the screenshots and are listening to the community’s feedback about DLSS at lower resolutions, and are focusing on it as a top priority." Additional training of neural networks will help bring about higher quality visuals, but training the networks for 1080p gaming is going to take a little longer.