Terrible performance on The Tragic Kingdom

The aformentioned map has some pretty disgusting frame losses, lags and small freezes for me which all happen randomly throughout the map and make it pretty impossible to aim properly, especially as a Sharpshooter or Gunslinger.
Seems very poorly optimized and affects even stronger hardware. Had some discussions with other players and at least every 3rd of them had some or alot of issues playing the map with regards to this.

Don't get me wrong, it's gorgeous. But the performance - especially compared to the other maps - is abysmal.

Terrible performance on The Tragic Kingdom