Upscaling tech has become incredibly common to find in games – so much so that all three GPU manufacturers offer their own solutions to do just that. Generally
In short, the difference between response times and input lag is that response times measure how quickly the liquid crystals in your display’s panel can change colour, and
This is the open source response time tool, or OSRTT for short. It’s primarily a monitor response time tester, although you can do input latency testing with it