I am trying to edit a 4 minute photo collage. There are no added effects on any of the images, just simple cut transitions from one to the next. However, it cannot playback while editing for longer than 30 sec - 1 minute without both skipping and lagging. Either the audio will skip with the video, or the audio will continue as normal but the images will lag and start skipping to try and catch up.
I'm wondering why this may be? Am I rendering correctly? I set in and out points, use the pre-set Alt + R to render, a box pops up asking which rendering I would like. I select "Best for Playback" however it doesn't appear to do anything. There is no progress bar, the cursor does not even spin like it is thinking. Am I doing something wrong in rendering? Why else would it be skipping?