Video quality lowered

[Sammy P.]

When I scale up my video to fit a vertical 4:5 1080 x 1350 frame, It lowers the quality a lot more than it used it. I used to have to scale to 178 and now its in the 300's. How can I get my vertical quality higher while editing? Shooting vertical is not and option as the videos will be used both vertical and horizontal. 

[Peru Bob · Accepted solution]

That much scaling will result in significant quality loss in Premiere Pro.

Some users have had good results with this third party app:

https://www.topazlabs.com/topaz-video-ai