Hey guys,
So I invited my friend to play PSO2 with me and my friends because we love the game.
He installed the game perfectly with no crashes or interruptions but when he got in the game he is getting around 30 fps with drops to 20s.
This is really weird since he plays other games perfectly fine like CSGO (130 fps) and rocket league (60+ fps)

His specs are:

4gb Ram
AMD Radeon (TM) HD 8500M/8700M
Intel(R)Core(TM)i7-3517U CPU @ 1.90GHz

Is there anything he can do to improve his performance?
Thank you for your time.