Hi guys.

there is any way to merge multiple spectrum nodes into one? just for save memory optimization.

if anyone has an idea please let me know.

Thanks in advance

any idea please ?

I guess the easiest way would be to export the spectrum to a texture.

Just as deviner said, export them to a texture. Merge the two spectrums then add an Ocean Evaluate node. Inside the Ocean Evaluate there is Export to Texture option, turn on "Bake All Displacements to One Layer" so that you will get only one texture for both spectrums. And hopefully that will save you some memory.