Basically I recorded gaming clips on my computer in 15 fps but the clips were in slow motion. This would allow me to speed the clips to 400% speed to get myself 60 fps. After I was entirely done with the project I tried rendering it and it came out completely misaligned with the music and the video went 4 times faster than I wanted it to. I afterwards noticed that the reason it was happening was because I had my project settings set to 15 fps. I changed it to 60 fps thinking it would solve my problem, but all the clips were then in different time frames of each individual clip. Would I have to restart my project entirely from scratch or is there an easier way to fix this?