[Help with basic.cfg and server lag]

Hello guys, i need some help with the basic.cfg, im getting low fps on the server side...

 

With ~35 players the server fps drop to 4~6 and sometimes the server stuck, i only have on the server DZMS and INFI AH.

 

where is my basic.cfg:

MinBandwidth=10240000;
MaxBandwidth=102400000;
MaxCustomFileSize=0;
Windowed=0;
adapter=-1;
3D_Performance=1;
Resolution_Bpp=32;
serverLongitude=2;
serverLatitude=49;
serverLongitudeAuto=2;
serverLatitudeAuto=49;

// Custom

MaxMsgSend=256;
MaxSizeGuaranteed=256;
MaxSizeNonguaranteed=144;
MinErrorToSendNear=0.027;
MinErrorToSend=0.0027;