mirroring

hi, there was no problem with my old MI 6 since it was 1080 x 1920 res. but right now i have Redmi note 10 pro (1080 x 2400) and video on TV screen surrounded by huge black bars when mirroring. so how to solve this problem? the video is 16:9 too but redmi note 10 pro's aspect ratio is 20:9 you...