My 750 SC can run shaders at max with a decent amount of bricks, but then the framerate drops bellow 60 and I need to lower it.
The odd thing is I can max out many other games like cs:go or just cause 2, newer games at high, but only Blockland is tough to run, its as painful as trying to have Java Minecraft run at 60fps, but even then My computer still gets 120fps+ in minecraft with shader mods enabled, where as Blockland likes to stay in the 70-80 fps area.
blockland has really poor shaders optimisation.
i don't know exactly why, but it might be due to engine limitations.
Pretty sure it is torque limiting us once again.
On the bright side if you force Maxed out Anti-Aliasing on Blockland you recover about 5 or 10 fps for some odd reason.