Welcome to the forum. If your asking about the thermal handling differences between synthetic and dino, I can't help you. I don't believe synthetic runs any cooler, engine heat is engine heat. There are some that say it does make their bike run cooler, but I have never seen that benefit. I can tell you synthetic oil can handle high temps better/longer than dino oil and doesn't break down as quickly, thereby protecting your engine longer. That alone is enough for me to run it in my scoot.
If your looking to lower the operating temp of your bike, I can say a full Stage 1 has definately lowered the temp on my bike, and I'm talking seat of the pants..I can tell the difference. Also, make sure you have the EITMS on your bike activated (if your model has it) I believe that helps too.
By the way do a search and you will get lots of information.