What's 'really low?' to me really low is like sub 40, are you talking about like 10? If your cpu is not good enough yea that's a big deal. But the way MO is set up, I don't think many people who aren't super enthusiast grade (as well as prolly dealing w/ dips anyway just for the eye candy) that are gonna run this game at high res high settings.
I have a 3700x which, if benches are to be believed, is pretty close to yours, and I have 0 problems running the game. Just not running it at high res haha. I can run at 1440 w/ dips. I can do 4k with hitches. But I play on 1080. It doesn't look great, but in MO you have to decide if you want the game to look good or if you want to not lag. That's a decision everyone except people with the newest toys will make (and even then I question if anyone is running 4k 60fps constant), and yea 8gb ram is prol not enough.
I would just lower settings, even other games have siege settings. MO is like "always siege" level. I would lower to where you are always above 60. Like I've said I do 1080 med, lo aa, and I ain't mad. 4k 50/60% res looks beautiful and runs pretty well, but it's not where I'd wanna be fighting.
It's not the most reliable, but I don't think I've ever pushed my gpu or cpu to 100% in MO2, regardless of settings. But I've not played 4k cinematic DLSS HI. Cuz I feel like my cpu would just explode. MO is a very resource intensive game. It does have to do with optimization but the whole one world thing I think also affects it.