CPU spikes

When I first load the game its fine, after 1hr of play every 2 - 5 seconds the CPU usage spikes causing the game to stutter.

Game is up to date as well as windows and graphics.

This only started happening within the past few days.

this has been solved by a comunity member - just look....
/cls
/ trade 300
/ global 300
use this in your chat window fixes this issues