Lagarith lags during recording

[_detayLd]

This is my hardware

Western Digital Veloci Raptor HDD 500g
1TB HDD
8g Ram
i5 3570k
GTX 680
GA Z77Xd3h Mobo
Thermaltake TR2 700w

I run dxtory with lagarith and record at 30fps. It records smoothy but the are parts when im playing that the FPS doesnt drop; but more or less skips and freezes for about 0.05 of a second every 10-5 seconds. Any advice? please? 

[ExKoder]

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