The Godox TT600 is a budget speedlite that is high speed sync capable. Getting it to work, though, requires a flash trigger because even though you can turn the HSS mode on the flash itself, HSS will not work with the flash on the camera hotshoe.

High-speed sync (HSS) is a feature in photography that allows you to use a faster shutter speed than the camera's maximum flash sync speed. It's useful in situations where you want to use flash in bright conditions or achieve a shallow depth of field with flash. HSS works by firing the flash multiple times in sync with the faster shutter speed, ensuring even exposure across the frame.