Why Time.deltatime is used in order to make the things which are dependent on time to operate correctly?
The real-time applications like games or any other have a variable FPS which usually runs at 60 FPS. During the specific slow-down or up-down, they might even go lower and higher.
If any value has to be changed from a to b within one second it cannot be increased because different frames run over a different time period and thus each frame have its own specific time duration. With the appropriate delta time, the value automatically resumed.
