ok. That is technically a entry level class graphics card so I doubt it will even be able to run ultra settings at 1080p. Those cards usually are for medium to medium-high graphic settings at 1080p. The texture setting is very resource intensive. You could try increasing the resolution and dropping the settings for shadows, lighting, and texture and see if that gives a better result.
To put it into perspective of how badly optimized this game is, I have a RTX 3080Ti and if I run one of those custom detailed maps with lots of characters and heavy lighting at 4k, I only get 9-11FPS. However, if it's only a couple characters and simple lighting at 4k, I get 40-50fps.