The GPU CPU-Z listed isn't running at its highest clock. You have two of them, but I'm not sure there's a way to ensure that Dolphin uses one specifically unless you disable that GPU (physically remove it, or through software). It could be that Dolphin is using the GPU shown in CPU-Z, which is still running at idle clocks, which is definitely going to be an issue speed-wise.
Double-check in your Nvidia Control Panel that under Power Managment you have it set to Maximum performance rather than Adaptive. Try to disable SLI mode as well. You can forcibly get a GPU out of idle clock rates if you increase the IR in Dolphin and/or set the Texture Cache Accuracy to Safe if all else fails.
If you still have this speed issue, can you run GPU-Z while running Dolphin and provide screenshots? I know you've been asked for a lot of screenshots, but it's the best way to convey info in these cases. Bear with us for a bit more
Double-check in your Nvidia Control Panel that under Power Managment you have it set to Maximum performance rather than Adaptive. Try to disable SLI mode as well. You can forcibly get a GPU out of idle clock rates if you increase the IR in Dolphin and/or set the Texture Cache Accuracy to Safe if all else fails.
If you still have this speed issue, can you run GPU-Z while running Dolphin and provide screenshots? I know you've been asked for a lot of screenshots, but it's the best way to convey info in these cases. Bear with us for a bit more