MSAA is pretty solid, but it has its own quirks and it's super heavy for how well it works. There's a reason we moved on from it and towards TAA eventually. And DLSS is, honestly, just very good TAA, Nvidia marketing aside.

I am very confused about the concept of "fake perfromance". If the animation looks smooth to you then it's smooth. None of it exists in real life. Like every newfangled visual tech, it's super in-your-face until you get used to it. Frankly, I've stopped thinking about it on the games where I do use it, and I use it whenever it's available. If you want to argue about increased latency we can talk about it, but I personally don't notice it much in most games as long as it's relatively consistent.

I do understand the feeling of having to worry about performance and being hyper-aware of it being annoying, but as we've litigated up and down this thread, that ship sailed for PC gaming. If you don't want to have to worry, the real answer is getting a console, I'm afraid.