Weird light popping

I’ve recently noticed a problem. When I walk with a flashlight, I made, in a dark environment and the light hits a tree it’s looks like it’s popping in. I think I know the reason why this happens. It seems to be when the light hits an object it immediately lights up the object instead of fading in. I was wondering if anyone could help me to fix this problem.
Thanks in advance to anyone who replies!

Try adjusting the intensity of the light, it may be up too high. Intensity ranges from 0 to 8.

It’s kinda hard for you to see but it’s like popping in when I get close enough