How to enhance video shot in HD and cropped

Hi - I shot landscape video in HD and then had to crop for instagram stories - which uses only about 1/3 of the sensor of original camera. I have tried to enhance the video as it looks soft in places and just a bit low-res with topaz video AI 4 and I can’t see ANY quality difference. what settings should I be trying?

I’d recommend upscaling to 4k by changing the output resolution.