Omsi gone very sticky....

Out of no where omsi just decided to start being sticky. Nothing has changed on my computer, but i dont know why the game lags a bit now? Anyone else had problems with lagging?
I have tried lowering graphics options but it just seems to stay the same =/
Cheers
Ash

Try using Defraggler to defrag your hard drive. Because OMSI only uses one core, it is essential the information is easier to find on your HDD.

wot about nvidea GeForce 9600GT 1GB 4GB ram ddr2 ........

so my setting is 650 MHz core clock Which is about half of wot it could be

400 MHz memory clock setting is not even a quarter of it total size

and 1625 shader clock is also about half way on its slider

if i want to make these bigger tht help reduce the lag? hope this makes sense thanks