Getting Started With Dolphin [OUT OF DATE]

[Panzer]

Hello. Yesterday i tried to run dolphin for the first time with Resident Evil remake but the FPS dropped from 25 to 5 after the intro and the emulator was using 100% of the CPU. Do you think it's because of my PC dosen't have the minimal requirements? Or it's the configuration? And how do i know if my PC has OpenGL? Check out my PC below:

Computer:
Type of Computer - PC multiprocessador PCACPI
OS - Microsoft Windows XP Professional
Service Pack - Service Pack 3
Internet Explorer - 8.0.6001.18702
DirectX - 4.09.00.0904 (DirectX 9.0c)

Mother Board:
DualCore Intel Pentium E2160, 1800 MHz (9 x 200)
Asus P5LD2-X/1333 (3 PCI, 2 PCI-E x1, 1 PCI-E x16, 2 DDR2 DIMM, Audio, LAN)
Mother Board Chipset - Intel Lakeport-G i945GC
System memory - 2048 MB (DDR2-667 DDR2 SDRAM)
DIMM1: Kingston 9905316-005.A04LF 1 GB DDR2-667 DDR2 SDRAM (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)
DIMM3: Samsung M3 78T2953CZ3-CE6 1 GB DDR2-667 DDR2 SDRAM (5-5-5-13 @ 333 MHz) (4-4-4-11 @ 266 MHz) (3-3-3-8 @ 200 MHz)
BIOS - AMI (08/01/07)

NVIDIA GeForce 8400 GS (512 MB)
3D Acelerator - nVIDIA GeForce 8400 GS

Monitor - LG L196WTQ (Analog) [19" LCD] (1712284400)

Realtek ALC662 @ Intel 82801GB ICH7 - High Definition Audio Controller [A-1]

Hard Disk - SAMSUNG HD250HJ (250 GB, 7200 RPM, SATA-II)