The full model number of the TV is UN40H5203AF. I should have added that in the original post. Sorry!
Wednesday (three days ago) I purchased my very first smart TV and so far I have found that it is not very smart at all. The reviews I had read seemed positive so I thought I was making a wise purchase. LOL!
I have a Samsung LED Smart TV Series 5300 (I believe) and whenever I am within an app - so far I have only used YouTube and Netflix - the TV is VERY unresponsive to the remote control. While I am watching "regular" TV (satellite) the remote and TV work fantastically. Everything is very smooth and the TV responds to the remote - volume, change channel, etc. - very promptly. When I load an app, Netflix or YouTube, the TV is still very responsive within the app until I start playing a show or video. As soon as a video is playing the TV is almost completely unresponsive.
When I first set the TV up the TV did not respond whatsoever to the remote while watching a show, movie, or video within the apps. The longer I have had the TV the more responsive it has become but it is still very clunky and difficult to use. Sometimes I have to hold the volume button down for 10+ seconds before the volume starts to change. Once it does, it jumps around. Often I have to mash the Pause or Play button multiple times in order for it to react, and once it does it overreacts and pauses and plays the show, movie, or video repetitively. Fast forwarding or rewinding is almost impossible as it is so clunky and unresponsive. I have had episodes of freezing while trying to get the TV to listen to a command while in both apps. I think it has frozen three times so far and I have had to shut the TV down completely. (once I had to just unplug it.
The only time the TV is even slightly unresponsive outside of the apps are when I am in the guide. It is pretty slow and unresponsive as well. Also, now that I think of it, the Smart Hub library (where it shows you your apps and you can download more) is pretty slow and unresponsive to the remote as well.
Let me clarify, load time of movies, shows, videos, or new content is not slow; the time between pressing a button on the remote and the TV reacting is what is so slow.
I have talked to Samsung both over live chat and over the phone. I even had a remote access session with them. They had me reset the TV, reset the remote, reset the Smart Hub, and had me put new batteries in the remote. None of which helped. The TV is supposedly up-to-date as well. Samsung said, "Give it time. The TV and the remote need to get acquainted with one another." That makes no sense to me. I will admit, however, the longer I have had the TV the better it is getting.. oddly enough..
I only have 14 days to return the TV though so I need to know if this is common and fixable or if it will never be as quick and responsive as it should be. I paid enough money for it.. it should be much better quality.
Last bit of info - I have found very few threads on the internet talking about this exact same issue and I have read what I have found extensively. So far there hasn't been a definite fix. It seems back in 2013 there was an update that helped some people but I would assume my TV is far beyond that update.
Sorry for such a lengthy post, I just want to get to the bottom of this!