I use Vivaldi and there are no speed issues except the initial startup time and new window launch time. Since I always have a browser open on my machine the ini

I use Vivaldi and there are no speed issues except the initial startup time and new window launch time. Since I always have a browser open on my machine the initial startup time isn't noticed and since I use tabs+tab-groups the new window time also doesn't matter, but it is a real pain when I /do/ want multiple windows.