Hey, I support an office where designers use MacBook pro for their design work. They mainly use illustrator (cloud) for files which can sometimes go up to 5GB in size! Needless to say, they are saying its very slow.. and can quit the app unexpectedly etc. They have new Macs - 16GB Memory and other specs are: Intel Core i7 (4th Gen) 2.2 GHz (3.4 GHz) / 6 MB Cache. What do you think is the problem? Does the memory need to be extended? Is it normal for files to even be this long?