Blockland shaders don't support intel GPUs. You're going to have to upgrade or get a new computer depending on the setup.
i have an intel card and it supports bl shaders, just not fast. on minimum though it can support 200k bricks fine
older drivers for certain intel cards do not support shaders but with windows 10 doing behind-the-scenes upgrades, intel cards are now not necessarily lacking in shader support.
note: i run on a $650 laptop purchased january 2015 so yeah. you will need to upgrade your computer if you want to see considerable performance increase