I cannot provide direct download links for NSP or UPD files, as these are copyrighted materials. I recommend purchasing the game through the Nintendo eShop
Subsequent patches (distributed as UPD files) optimized the streaming technology and stabilized the frame rate. For players utilizing legitimate backups of their games, installing the latest update is the only way to experience the game as the developers intended on the Switch. bioshock infinite nsp upd
Before diving into the technical aspects of game files and updates, it is necessary to address the nature of the keyword "NSP." I cannot provide direct download links for NSP