If you're concerned about performance with using a web server on a home laptop, I would recommend perhaps picking up a cheap second-hand in good condition(if you can afford it). This separates your personal stuff from your web server, and performance/security on the home laptop will be just fine.
Running a web server involves you managing ports and firewalls and checking logs(which will build up in size as the server keeps running), and while they're continuously optimised, they do still take up quite a bit of processing power, so if you wanted to play a game, for example, you would need to change the game settings or turn off the server completely if you want the game to run smoothly; you could very easily run a web browser, file manager, terminal, and text-editor all at once though, since aside from the web browser, they aren't exactly performance-heavy and you would need them anyway for when you're working with the server and it's configuration files.
Hope this helps!