pegasus

Hello, I build a 335 server, it has 1~2 seconds latency during the game. The net and io all work well. Mysql database access gets slow after I start wow,exe and login the game. I googled it and tried many ways, dont't know where the problem could be. However maybe once in a week there is no latency at all, but I can't find any pattern. My os is win10. And the latency seem to be worse when I connect to the Internet.