Good Afternoon Snidgdho,
I will attempt to do my best to explain the current issue. Multiple cheat clients have introduced features to help bypass speed checks. I have used a couple of these (On my private servers, that I own, and never on cubecraft), and they are shockingly effective. Some ways that cheat clients bypass this is by freezing the player when a speed check occurs, and resuming milliseconds later, once the speed check is complete. Constant speed checks have a significant effect on server performance, thus it is not practical for Cubecraft to upgrade their current system.Another current issue is killaura, reach, and anti-knockback. These are extraordinarily difficult to detect. The server is unable to check what software is active on the cheaters devices, and killaura and anti-knockback are designed to confuse the anti-cheat. Reach is a bit different, the Minecraft client is reporting a hit on an enemy, despite the fact that the reported player position is too far away for the enemy to hit them. All of these cheats are incredibly difficult to detect, thus manual moderation is required. If you would like to help with this issue, please utilize /report to report cheaters. From what I understand, Cubecraft is currently expanding their moderation team.
I hope this helps!
