Accessing dynamic links in the format of domain.com/<dynamic_page_name> in CodeIgniter

I am using CodeIgniter for my PHP project. I want to give provision in my site such that users can create new pages of their own, and access them directly from [login to view URL]<their_page_name>. But, my developers have raised a concern that, 1000's of dynamic links that are presented in the format of [login to view URL]<page_name> is "not good for site's performance". For some 10-15 pages, it is fine. But, beyond that, it would effect the site's performance. So, they proposed that the URL format should be like [login to view URL] (here, 'something' is the controller name, as they mentioned it) But, I really can't sacrifice my framework nor my requirement. Is there any way that I can achieve the format of "[login to view URL]<page_name>" without effecting the site's performance? My budget is $35 - $45 You suggest me the way to achieve this => I award this project to you and create the Milestone => You show me the implementation sample and give me the code => I release the milestone