I totally get where you’re coming from! Lag and quality issues can really ruin the experience when you’re trying to mirror your iPhone screen to a TV using Chromecast. The Google Home app is a good starting point, but it definitely lacks the performance needed for more demanding tasks like video streaming or gaming.
I’ve tried quite a few options, and I found that a dedicated iPhone screen mirroring app usually provides a much better experience. For instance, apps like AirPlay-compatible Reflector or AirBeamTV can handle high-quality streaming without too much lag. They’re designed to optimize the connection between your iPhone and the TV, making them more reliable for video playback or even presentations.
If you're interested in more options, you can check out this guide on
iPhone screen mirroring app. It offers a comprehensive list of apps with detailed pros and cons, so you can choose one based on your needs. Also, just make sure you have a strong Wi-Fi connection, as that tends to be a common cause of issues when streaming!