It would be nice to be able to configure it for each lamp individually. Unfortunately, the configuration of the Radius of the lamp has no effect on the result for volumetrics.
Anyway, for all the lamps within the Volume you could try with “Light Clamping” value inside Volumetric Lighting in Render tab. You start from a very high value (30000 for example) and you start doing tests by reducing the value (10000, 5000, 1000, 500, etc) until you find a value that works for you.
Thank you it worked. But what if i want some of the lights to be seen? Do i need to create different volumes for each light to be seen?
As I had mentioned before, it would be nice to be able to choose different configurations for each lamp, but I think it is not possible and I am not sure if there is any workaround to the problem.