I created this video https://www.ergo-travel.com/APICS/GreatArtCities-promo4a.mp4 using the latest VideoPad but the first 5 seconds shows a very pixelated zoom which I can't figure out how to eliminate. The original clip is a high-resolution (6000x3376) image but the final video can't get anywhere near this. All the other clips used in this video are of a much lower resolution but the results are still far better than this first bit.
Ironically, I had created an earlier take of this video using VideoPad 5 prior to upgrading it to the latest version, the same project file with with all the same original clips, and despite the fact that this is a much smaller file the zoom is far better: https://www.ergo-travel.com/APICS/GreatArtCities-promo3.mp4
Is there something I can do about this? Would appreciate any advice and suggestions to overcome this. Thanks!