Not sure if right forum, or title.
Using the new stand alone Opera Mail Client I find it spends a lot of time syncing or downloading headers upon opening it. The program becomes unresponsive most of the time while it does this. Also, on the first boot of program takes a few minutes before the application can even be used (See it in task manager though).
I realize the reason is probably because I have a bajillion emails in my gmail account and I never really archive email. Besides doing this, is it possible to increase the cache or something. Not sure what it's called. I don't mind having more storage taken up on my hard drive, just want more, now, faster! 
Thank you!