Why does my television show the picture from the laptop slowly?

Yesterday I connected my laptop to my television with an HDMI cable. But now I have the problem that on the one hand the television needs 0.5 - 1 second to reproduce the received image and on the other hand it has a few FPS drops. This is very restrictive when playing computer games. Why is that? Is there a solution for this?

See if you have a picture scheme on the television. Set it to "Gaming" then it should be better.

Despite hdmi inputs, older televisions are not geared towards the fast response times that modern computer monitors bring with them.

or your hdmi cable is not 100% compatible or has a flaw.

If the TV has a game mode, it wouldn't have the problem and I think it only comes with compatible devices ala PlayStation etc.

No, that is not correct. You can set the television sets explicitly. It has something to do with the transfer. If he has set a different scheme, it is simply slower. So he should set this to game mode.

With my Samsung, the game mode is not displayed with every x HDMI connection. Normal connection from device to device should still work without a second delay.

There are so many televisions out there, not all are created equal. I also wrote that he should look after it. There are also televisions that don't have that.

I have several televisions because we're a pretty big family and almost everyone has one. We also have multiple devices where the ports are different and support different sources. There's also that.