Only Getting 23 Fps...

armanator75

<!--emo&::asrifle::--><img src='http://www.unknownworlds.com/forums/html//emoticons/asrifle.gif' border='0' style='vertical-align:middle' alt='asrifle.gif' /><!--endemo--> ya im only getting about 23 fps...... and im not sure why??? i have fps_max 100 and stuff. cs also when tdown to about 40 when it used to 100 every day??
im so lost plz help