Discussions Per Page is maxed out at 100


We used to run our community on a very old forum software and that shows more than 100 discussions per page. We've recently migrated this forum to Xenforo and our users are not used to have only max 100 discussions per page. We understand about the performance concern but we think that our servers should be able to handle it. We just need to move up to 300 discussions per page. Where can I remove the 100 discussions per page limit?

Thanks in advance.