(Sorry if my speech is incomprehensible, I'm writing through a translator)

the problem is that it takes a very long time to come to my server, I'm 100 percent sure that this is because of an unoptimized world, it weighs 800 megabytes and there are a lot of "ldb" files in it, I think that such a large number of files slows down very much server, I am sure that if there was a way to combine all these files into one, then the problem would be solved. I tried to run the world on linux server, windows server and in the minecraft application itself. in the minecraft application, the download is much longer than on the server. Please help, I searched the whole Internet but found nothing