Updating the bios wont improve your performance. You are using one of the latest, no idea which, but it's a late version since you are using the 4790k. Only thing you will get from bios upgrade is 5th generation CPU support, which is useless to you. My recommendations are the same as the recommendations of every motherboard manufacturer: don't update your bios unless you REALLY NEED TO and it will give you a new feature which your system can't run with. No, your computer won't run faster with a newer bios.