Performance problem between two PCs with the same VR project.

Development Platform & Builds XR Development
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1

Hi everyone,

I’m writing because I’m experiencing performance issues with my VR project developed in Unreal Engine 5.1 and I’m looking for help to understand the cause and solve it.

I work on two different PCs, one at home and one in the office, using Unreal Engine to develop a virtual reality project that I test with a Meta Quest 2 connected via a link cable. On my home PC, the project runs perfectly in preview mode, with smooth performance. However, when I try to test the same project on the office PC, the performance is very slow, with significant lag and frame rate drops. The Unreal Engine settings are the same on both PCs.

Office PC Specifications:

  • CPU: 12th Gen Intel(R) Core™ i7-12700
  • GPU 0: Intel(R) UHD Graphics 770
  • GPU 1: NVIDIA T1000
  • RAM: 32 GB
  • Storage: SSD (NVMe MTFDKBA1T0TFH-1BC1AABHA)

Home PC Specifications:

  • CPU: Intel (R) core ™ i9-9900k 3.60GHz
  • GPU 0: Intel(R) UHD Graphics 360
  • GPU 1: NVIDIA GeForce RTX 2080 SUPER
  • RAM: 16 GB
  • Storage: Sabrent SSD 954GB

What could be the causes of this performance difference between the two PCs?
Are there any other optimizations or settings I should check in Unreal Engine?
Could there be specific hardware differences affecting VR performance?

Any suggestions or advice would be greatly appreciated. Thank you in advance for your help!

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a) Make sure none of the games are running on the integrated graphics chips.
b) The T1000 when compared to the 2080 super is far weaker and not by a small margin. (in some tests it has a 1/3 of it’s performance or lower).
c) The CPUs seem comparible so that’s rather not the problem

Try turning off any bells and whistles like virtual shadow maps and lumen.

If you are targeting weaker hardware then I would suggest maybe looking into unreal 4 in place of 5. It has much lower requirements and may suite the project better.