So, I have a Laptop Dell- Inspiron 15 -i7 - 8 GB Ram- Ati Radeon R 5 - 4 GB Switchable graphics ( with intel bla bla ) ...ALL Games are working like crap. laggs a lot.like 2 FPS seems sometimes even from games like NFS most wanted or older games .I have installed all possible drivers, set all preferences on high performance against battery save, I understand from the only post seemed to be a complete explenation that the only way to make it work is to completely disable from Bios the onboard one and make the ATi default / main Video adapter as it is only used as a ''Helper'' of the onboard one no matter what , which in my bios is nowhere to be found , there are no advanced option even after update-ing the Bios. If I disable the Intel graphic from device manager the games will not recognize the ATi neither. ...I would reaaaaly appreciate a good resolution to this. Thank you !