Latency too high at peak time

I recently joined the server and really enjoying my self here. But I noticed significantly high latency during peak time. I'm playing from GMT+8. I can play in one of your competitor's server (server location in your neighboring country) without much latency issue, but I really want to keep playing here (Lordaeron). The strong population and healthy new players leveling in each zones really hold me up.

I can play smoothly during non-peak time (though there are occasional spike, but very minor).

Really hope admin can look into this.

Think, why is the server unstable and lagging during peak times (when there's too many players which causes the server to be pushed to its limits) ?