Performance Lag

Hi,  First of all, I admit my campaign is quite big (about 30 pages with tokens on it), though 25 are archived. My problem is that, despite having 25 pages and several characters archived, it keeps lagging (which never happened before). I went through all steps but nothing works. I was wondering if there could be a technical issue with my campaign and if someone from the technical service could get in and take a look ! My campaign is : La Tapisserie Brune Présente : Thanks very much !

My 13th Age game started getting lag, so I created a Vault campaign, used the Transmogrifier to move all the monster Journal entries into it, and cleared out all the lower level monsters I don't need any more.  Now I create new monsters in the Vault game and copy them into the 13th Age game as needed during my preparation time. 

Note that the archiving is purely an organizational archive, and has no effect on your campaign's resource usage. Did you create your maps as one image, or with several tiles? How big are your maps? And finally,how many tokens do you have on them?

No usually my maps are maid of several tiles cause the resolution of a single image isn't good enough to zoom it all. And some of them can't be maid of 100 tiles... 

Ah, ok, using multiple tiles will bog your game down. Best practice is to download the tiles (if possible), assemble your map in an image program like GIMP or Photoshop, then upload the completed map as a single image

Ok that I will do. For now, I want to separate my huge campaign into small ones. How can I copy and paste maps.

Use the transmogrifier to move your pages between campaigns.