Lost_luggage34,
That is the hazards of bouncing between multiple threads. From the other thread which I replied to you:
That is the time it takes for the Pixel to Energize, De-energize, or Switch Colours. The faster the Response time, the less Ghosting you get on the screen.
TFTs with show Response times will give you a headache any time you have fast action on the screen. (Which can be something as simple as scrolling down a document or webpage.)
Take Care,
Richard