Render Transparent Geometry

Is it a 2D or 3D project?

Maybe you can post a screenshot?

You can use a cutout shader instead of a blending one, the performance change depends on the hardware. You can split the transparent part from the opaque. You can shrink the texture size. You can move all transparent textures to a texture atlas. I would start with the atlas. The transparent objects are sorted by the distance of the game object pivot to the camera. Avoid switching the texture or material when rendering the transparent meshes.