Hi!
Is there a maximum amount of pages/subpages GRAV can handle? I`m currently using antimatter-theme.
Best, siren
There is really no hard-and-fast number. We have had reports of people running a site with over 2500 pages.
Prefect, then I’m not bursting the system with my about 350 pages … 
Of course, utilizing a fast hosting provider is probably a good decision for any ‘larger’ size site.
Absolutely right. Also, I changed from images to fitting icons from Font Awsome, which also helps a lot on loading-speed.
A CDN will help also.