Event vs. new 10.1 Library - what about memory and CPU usage? help

I'm working on a Behind The Scenes documentary about the production of a feature film. I have tons of clips, almost 3TB of 1080p material. Loading all those events in one time was really heavy on my MacBook, Apple suggested to split it into many events, it ended up being about 20 events with an average of more than 500 clips in each event. My projects using clips from multiple events. I used to use Event Manager X to only load the events I needed in order to keep the process as light as possible. Now, with the new system, how heavy would it be for my MacBook to have just one library with all the events? Would it be the same as opening all the events at once? Because that takes a lot of time and it's heavy on my system. What would you recommend for a situation like mine? (buying a new MacPro is not an option now hehe..)

Nothing wrong with multiple Libraries. And you can put them in a single folder on your media drive, too.