Slowdown using GL with SDL?

Does anyone know if there are any particular problems with slowdown when you develop games with the SDL/OpenGL combination compared to just using Windows code with OpenGL? How bad is it if so? Just wanted to be sure before continuing development using the two. ^^

There is no reason you should experience any slow down with the SDL+OpenGL combination after initializing both properly.

[ | vector_math (3d math library) | software renderer ]

It also works good with GLEW. Just call glewInit() and then you can access OpenGL extensions without using SDL API.

the source code for SDL is included with the download so u can see what it does, theres no inherit slowdown associated with SDL, if u can show a less than optimal main loop method with SDL, im sure the SDL maintainers (+ me) would be interested