I have 4 30 minute videos I want to combine. Separately in a folder the combined size is 250mb (around 63mb each). I’m on a mac so I’ve tried CapCut and iMovie but when I combine them they go to 1.6gb. I have about 120 of these I need to combine into about 30 different movies. What is a free app that I can use to convert them without gaining the additional 7x size. The video is 480p and 30 fps and I’ve tried putting the settings to that and that’s what the 1.6gb is. With it being normal settings it reaches 3.7gb. Any free apps that would work would be great thanks.

Ps: I’ve tried hand break and it brought it down to 450mb but that’s still 2x the original