Netflix Question

I am not entirely sure how different Netflix apps work, but I am having some troubles.

1. It appears the output definition varies based on platform? I have a 1080p LED Panasonic. You can definitely tell there is an improved picture when using Netflix with the Chromecast than with my PS3/PS4. Is that because the consoles are not pushing a full 1080p picture?

2. Even more irritating, no matter what platform I use for Netflix, I eventually get issues with the audio feed not syncing with the video. Any idea on how to alleviate this? Is it my connection? I have FiOS 15down/5up.

I appreciate the help. I have been searching the internet for a good answer on this and I haven't found one.