I think it still needs some more information. What format do you render to? Etc. Maybe you do a search her in the threads or in the backroom. I am sure that this was discussed before. That will be the fastest. I normally don't do much animation AND i am on Mac. So i can't help really technically. But again, i know that this issues are discussed before. Find them!

One day your ship comes in - but you're at the airport.