reduce the render distance with plus or minus key. that helps a lot....
or just use the source of this branch, which is luanti, this is just a outdated version of it with a different name to my knowledge. https://www.luanti.org/downloads/
or just use the source of this branch, which is luanti, this is just a outdated version of it with a different name to my knowledge. https://www.luanti.org/downloads/