I guess it depends on which format and resolution each of these three camcorder sources are. And which you used as the first clip on your timeline, since that determines your project settings.
What are each of the camcorder models that your video is coming from? What are your Project Settings, which you'll find under the Edit menu.)
You've got plenty of power, of course -- but using 90-minute videos as your sources could tax your system, especially if your timeline isn't rendered.
What happens if you render the timeline (by pressing Enter so that any yellow-orange lines along the top of the timeline turn green)? Does that smooth your playback?
Thank you for the reply,
The video clips are .mov files and the resolution is 1920 x 1080.
I'm not sure of the camcorder model as I didn't actually record the footage, I was only sent the .mov files.
My project settings seem normal (I haven't changed or adjusted anything) The editing mode is HD 1080i at 29.97 fps
and the display format is 30 fps frame-drop timecode
I've tried rendering the timeline, but it doesn't seem to help the issue.
I do have the yellow red "render line" but when I render it, it turns green. And when I edit or change footage, it becomes red orange again above what I changed, the rest remains green.
Sorry about the confusion, I didn't explain it properly. The footage was shot with three different camcorders but I am just working with the .mov files in Premiere Elements 14. So there is three different .mov files in my timeline.
If you're seeing the "render line" above the first clip you add to your timeline, then your program is not properly setting up your project to match your video specs -- which is what's leading to your lag. That happens sometimes with Quicktime files.
You'll need to find out your video specs and manually set up your project to match them. Which means you'll need to start a new project.
You say your project is set up for 1920x1080 at 30i. Apparently your video uses a different frame. Possibly 30p.
Download the excellent, free MediaInfo and open your MOVs in it. (You'll need to know the specs for all three video sources that you'll be using.) MediaInfo will show you the codec, the frame rate and resolution for your videos.
Thank you Steve for all your help, I think I solved the problem. My program settings were not properly matched with my video specs. I just want to be sure but I shouldn't have any colored render line on my timeline if everything is set up correctly, right?
If the mov's are dslr footage you should not have any colored bar over the footage when dropped in a dslr setting.
Wonderful, Thanks for all the help guys!