"Possibly, initially. However, probably not significantly, since you should only build the framework that you need."
OK, I have to throw a flag on this point.
Modern frameworks give you a lot of essential functionality OOTB. I've worked on enough home-brewed frameworks -- and indeed have been foolish enough once or twice to build my own. I've also used several great frameworks across a number of common languages.
If you can make an honest case that it's "probably not significantly" slower to roll your own framework as you develop an app than it would be to develop that same app on top of a great modern framework, then I'd love to hear it.
OK, I have to throw a flag on this point.
Modern frameworks give you a lot of essential functionality OOTB. I've worked on enough home-brewed frameworks -- and indeed have been foolish enough once or twice to build my own. I've also used several great frameworks across a number of common languages.
If you can make an honest case that it's "probably not significantly" slower to roll your own framework as you develop an app than it would be to develop that same app on top of a great modern framework, then I'd love to hear it.