HELP NEEDED - PLEASE REPLY

Would anyone know how i should set up my ePSXe program? What plugins should i use? becoz i dont know how to make it run better, it doesnt work properly for me. Here are my PC Specs, hope its enouht info.

Processor: Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz (1796 MHz)
Operating System: Microsoft Windows Vista
DirectX version: 10.0
GPU processor: GeForce 8400 GS
ForceWare version: 175.19
Total available graphics memory: 767 MB
Dedicated video memory: 512 MB
System video memory: 0 MB
Shared system memory: 255 MB
Video BIOS version: 60.86.50.00.20
IRQ: 24
Bus: PCI Express x16

No double threads please. Don't do that. OK ? Thanks. :)