these repositories appear to be private, they are not accessible over the Internet, so, unfortunately, we cannot check the repositories over the links you have sent.
Regarding the repositories translation speed – the repositories may reside on the same server, but they can differ from each other nonetheless, and those differences may cause noticeable differences in the translation process. For example, one repository can reside on a fast disk device and other on a slow one, and that can cause significant difference in speed. Or, as I mentioned before, one repository may have a clear and straight history while another can have some issues, like copying the root directory as a branch. Such things in SVN history cause a significant increase in data size during the translation that can cause low translation speed, too.
So, the speed of translation may differ significantly even for repositories on the same server, and there is no single universal solution for that, every such a case requires investigation to find out what is the reason for slow translation. We would need logs from the affected repository, ‘svn log -v’ output for the correspondent SVN project or repository and, advisably, logs of the initial translation from another repository (the one not affected by the issue).