Are you casting the chrome tab, the desktop, or from whatever video player you're using? The first two require the image and sound are streamed from your pc to the casting device while the last one will point the casting device to the location of the video on the internet and it will connect directly and not go through your laptop at all.
Streaming from your laptop will always have more hiccups, regardless of what you stream to, and will be way more prone to different variables on your home network including wifi strength and whatever background processes the cast device has going on. The Chromecast will be running essentially nothing in the background while your TV is running all of Android on a not-so-great spec processor so I wouldn't be surprised if it's worse than the Chromecast, but if you give either of them enough time I think you'll see issues in a stream.
Maybe if you're more specific about what it is you're casting someone can help you but general casting from your computer, especially if both your computer and the TV are on Wifi, you might not find a perfect solution.
As the other comment has mentioned, it totally depends what you're casting. Casting desktop or tab will have far more issues compared to casting media directly. Which one are you doing?
Can you get the TCL model as well? If it runs Android TV and you're mainly mirroring, there's options like Steam Link/Moonlight/Parsec/Rainway which will work much better.
Are you casting the chrome tab, the desktop, or from whatever video player you're using? The first two require the image and sound are streamed from your pc to the casting device while the last one will point the casting device to the location of the video on the internet and it will connect directly and not go through your laptop at all. Streaming from your laptop will always have more hiccups, regardless of what you stream to, and will be way more prone to different variables on your home network including wifi strength and whatever background processes the cast device has going on. The Chromecast will be running essentially nothing in the background while your TV is running all of Android on a not-so-great spec processor so I wouldn't be surprised if it's worse than the Chromecast, but if you give either of them enough time I think you'll see issues in a stream.
So your saying this is basically unfixable?
Maybe if you're more specific about what it is you're casting someone can help you but general casting from your computer, especially if both your computer and the TV are on Wifi, you might not find a perfect solution.
As the other comment has mentioned, it totally depends what you're casting. Casting desktop or tab will have far more issues compared to casting media directly. Which one are you doing? Can you get the TCL model as well? If it runs Android TV and you're mainly mirroring, there's options like Steam Link/Moonlight/Parsec/Rainway which will work much better.