Does using Views & Panels on every page will effect site performance (speed)? I am building a community site. 
The site would have A LOT of data on it.

I thought about creating a lot of content pane with views, and use them with panels - for every page.

I will be happy to hear your thoughts about this idea.


It will make my site much slower?
Or it depends entirely on different things?   if so, I will be happy to get more information. I know I need to cache,  but I don't really know how to do that on the user's computers.


Thanks!
Panels is actually sometimes faster than core is on it's own.

http://www.codeenigma.com/en/blog/performance-panels

And that's without utilizing caching, something Panels can do much better than core, because it allows you to do it from on a page by page basis, down to on a block by block basis.