Hi, I'm a complete beginner with adobe premiere pro cc 2017 My goal is to make a splitscreen video of myself playing different music I have my mp3 of my final audio and it plays perfectly. The problem I'm having is each video I post has tremendous lag. I saw that I should render the video, but once I move the video forward or back after rendering it starts lagging again. I need to have it not lagging to see where to place my video. Any thing I can do?