For those complaining about performance...post your GPU and overall PC specifications because it can give a better idea of what is the actual problem. (your PC configurations or the game itself)
For example I saw that in planets the game is using 3GB of vRAM more or less (with also GPU usage 99% which means the game is working as intended using your resources)...and I bet most of you don't have a GPU with 3GB or so memory. That can be causing the stuttering and stuff like that close to planets.
I see a lot of people playing with laptops (that says a lot...) and GPU's below mid range as well (GPU's that were not meant to play games at high resolutions or higher frame rates), even some of you playing with dual cores and the latest GPU's...which are probably causing a bottleneck in your system. Using unbalanced systems can also generate other problems if the game is heavy enough, as Horizons is now at least over surfaces.
If your GPU has not enough vRAM there is nothing Frontier can do,...well actually they can by downgrading the game until a point Minecraft looks better so we all can play it at 60+FPS in multimedia PC's. I don't think we all want that.
Also some common sense tips, if you are using V-Sync and your GPU is not so powerful enough to keep the targeted frame rate (30 or 60FPS), turn it OFF and the game should run a little bit better. You may have some tearing but at least the game will feel smooth.
V-Sync can also add input lag and stuff like that, people who play shooters (like me) and such always use it disabled.
As an example I have this now and I play at 1920x1080p:
OS: Windows 10 Pro 64bit.
CPU: AMD FX8350 8 Core processor @4.2Ghz.
Memory RAM: Kingston Hyper X 1866mhz 8GB (4+4) I'm going to add 8GB more quite soon.
GPU: Gigabyte GTX560Ti OC 1GB from 2012.
SSD: AMD R7 240GB (Elite installed here)
The game all maxed won't get past 80FPS in open space (V-Sync OFF always) and inside of stations it goes down to 30FPS. Just by turning shadows to MID I get 110/120FPS in open space (even flying around planets) and inside stations the lower frames I get are at around 50FPS (acceptable compared to 30 even if it goes down more than half of what I get in open space). Have in mind there are more polygons, things moving all around, IA's, other people, lighting effects, shadows, etc inside of stations.
In asteroid belts around 60/80FPS.
I know why I'm getting lower frame rates with shadows maxed out, because I have only 1GB of memory and my GPU probably need more vRAM aside from not being as powerful as new GPU's.
At some games like The Witcher 3 I can't play at 1920x1080p, even at Low it has input lag hitting barely 30FPS. But at 1280x720p I can play in High settings having around 45/50FPS and no input lag. Is not surprising for me, I knew this was going to happen with such a demanding game with my old GPU.
So my point is, don't forget that most of the time we played the game in open space and now we are also playing in planets with closer details in front of us. The lighting itself generated over the surface, the textures, the particle effects, shaders, etc it sure is more demanding than the rest of the game. Don't forget tessellation as well which is quite demanding, without it forget about looking at realistic shapes or curvatures...
All in all I'm getting a new GPU in the upcoming weeks, not just because of Elite Dangerous: Horizon, but because of all the other games I also can't play as I wish because my GPU is just old. And you have no idea how that GPU ran with my old dual core before I could upgrade it...Basically everything was unplayable, upgraded the CPU and RAM (of course new motherboard as well) and performance increased a lot. (had a massive bottleneck...now the bottleneck is the GPU)
PS: I'm not saying Frontier does not need to optimize the game, or Nvidia and AMD work on their drivers, just have that in mind.
