Light splotches

Why is this happening. It happens whether I use vray light or light material.
What settings do I have to increese to have better resoults,

I use LWF, IR primary LC secondary, gamma 2.2, …

is that a vraylightmtl? or a vraylight casting the light?

As I say, I have that problem with both of them

sorry, i didnt read you post completely.

Have you tried with LC/QMC?

Also, you could post your settings?

Maybe I will make animation so I need it to be in Ir map becouse of speed.

Settings IR -3 -1
             25 samples
             50 subdivision

QMC adaptive 0.85 samples 16
            noise 0.001 subd. mult 1.1

color mapping gamma 2.2

Any vray log errors?

For a test put 100 in the IR map subdivs

What about your other IR mapp settings?
Do you have blur GI on?