Remote Image Cache

[kory27]

I recently started using a remote image url to power my thumbnails on my website. i noticed a significant, but not across the board, slowdown in page load times. i ran an sql monitor and nothing is showing that would cause the issue, so i am wondering;

1. Would a remote image url in CF 7 cause slower page load times?
2. Is there a way to cache the remote images in intervals?

Thanks for any insight you may provide.