high quality textures are niether difficult nor expensive to make. the same is true for models and meshes. if they were, we wouldnt have singular people churning out HD texture mods for tons of games, or HD mesh/model mods. this is just pure laziness and cutting of corners. things dont have to be "photorealistic", but if the textures look like a ps1 game, and the models are even lower quality, as is the case here, its outright repugnant to look at. the reason for the games terrible performance is in fact the heavy useage of post processing effects, which dont even look good TBH and just blur everything except the shadows, which look like blocky minecraft shadows because the models and meshes are all blocky ps1 models and meshes.