After gameplay I retimed this run using https://somewes.com/frame-count/ with a console FPS of 60.098813897441 which is the NES native framerate according to http://tasvideos.org/PlatformFramerates.html and raw video framerate of 60 FPS for a total of 53174 frames or a Console Time of 14:46.233. First Frame set on the first blue frame after pressing Start and End Frame set on the frame transision starts after entering the final door.

I use Nintendo Entertainment System Model No. NES-001 with "N8 NES Everdrive" generic cartridge with "Super Mario Bros. 2.nes" loaded and GV-USB2 Capture Card. Console check at the end of the run.