Works for me? No, or at least not how I'm currently implementing gridmaps. I can spawn 4 times than before and there isn't frame rate lag. However, 200 thousand blocks aren't much when I'm thinking each block is 6 inches and I want a whole world. Is there a way that i can improve it further?
For added detail.
20 x 100 x 100 is the largest I can generate. It has about a 30-second start-up time and if I tell it to go any bigger.. well I haven't found the start-up time for that because it's so long. It just sits there no errors or anything.