I am running Apache and Filezilla ftp server in Windows. I've been noticing for the last few months that whenever I start up the ftp server, the websites start to run slow. When I shut off the ftp server, the websites start speeding up again. Sometimes I need to restart Apache server after shutting off the ftp server to speed up the websites. I only start ftp server whenever I need to allow remote file transfers. Other than that it's always off. I'm not sure what's happening and where to look.