I recently bought my friend A Realm Reborn, and he has about the same specs as me which are:
Processor: Intel Core i7
Graphics: Intel HD Graphics 4600
Memory: 8GB (64-bit)

I understand we are running low end gaming laptops but I am able to get a steady 30-40 FPS on low game settings, but he is only getting 15-20. We had updated his graphics driver and checked the power settings but no luck. Googling the issue didn't work.
Please help! I can provide more specs if needed!