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Hello! 

I have a homebuilt PC that I wish to run PlayStation 2 games on, specifically Ratchet and Clank. Some parts are a little outdated and it could use a bit more RAM, but those will come when I have the funds. For now it runs and it runs decently and I have all files I need to run the emulator. My issue is that the game lags horrendously and is having issues properly rendering, most notably characters showing up as just a green model and textures randomly flashing to a static-y sort of thing. The pictures don't do much justice to show the severity of the problem, but they give a glimpse at what it's doing:




My specs are as follows:
OS: Windows 7 Ultimate 64-bit SP1
CPU: AMD Phenom II X4 840, Propus 45nm Technology, 3.60 GHz
RAM: 12.0GB Single-Channel DDR3 @ 449MHz (6-6-6-17)
MOBO: MSI 970A-G43 PLUS (MS-7974) (CPU 1)
Graphics: 2047MB NVIDIA GeForce GTX 670 (EVGA)
Storage:

• 698GB Western Digital WDC WD75 00AAKS-00RBA0 SATA Disk Device (SATA)
  
• 698GB Western Digital WDC WD75 00AAKS-00RBA0 SATA Disk Device (SATA)
  
• 931GB Seagate ST310005 20AS SATA Disk Device (SATA)
  
• 931GB Seagate BUP Slim BK USB Device (USB (SATA))
  

Audio: NVIDIA High Definition Audio

Thank you in advance to anyone who can provide an answer!

Download the latest dev build here, use the OpenGL renderer.

https://buildbot.orphis.net/pcsx2/

the stp for that chip is 1100. The slowdowns could very well be due to that. The general rule of thumb is 1600-1800 for mast games

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follow what CK do so
look my screenshot