We highly recommend keeping your media files below 23.8MB.
You can do this by:
- Downsampling your video to standard web sizes (no HD)
- Compress video and change file type from .MP4 to .Mov
- Change dimensions of the video down to a smaller size (the perfect dimensions would be 270x480)
- Using MP3s instead of AAC or WAV
- Using optimized JPEGS instead of RAW or PNG24
- Keeping your animated GIF files to less than 10 seconds in duration
Hope that helps!