Removing the .htaccess will probably fix the video problem, but the slowness issue isn't going to be solved by moving videos to another site as the main site is still doing all of the work (the second server is just hosting the files and is not taking over processes). Using 130% CPU may not be a problem as you have a quad-core processor, but it could be a sign of poor optimization. I could help you optimize your system for the load. Send me a PM and we can discuss that.