Thanks for the review and the kind words! I'm glad to hear the latency is working so well for you.
Regarding the brightness: this often happens when the capture card and the software interpret color ranges differently. Could you please open an issue on GitHub? That way, I can help you troubleshoot this better and track the bug.
Good news: I'm already working on a feature for future updates that will allow you to manually tweak image settings (like brightness and contrast) directly in VGC! :)