Many companies suffer horrible log-on delays because of their computer security defenses. The problem affects both Windows and Linux/BSD machines. It’s common and expected to trade some level of performance for greater security. But extremely bad performance shouldn’t be the cost of implementing a computer security product. So what can you do about it? Try disabling your host-based firewall or anti-virus product, then redo the boot timing tests. Sometimes the security software can be tweaked to improve performance, in which case you may need the help of the vendor.”]
Source: https://www.csoonline.com/article/2632483/when-good-security-kills-performance.html