Update: Went down from 2.5x to 2x IR and it helped a lot, went back to the level of performance I was having on 4.0.2. Honestly I really didn't think that it would have such an impact since boosting the IR is a GPU thing and Dolphin really require much.
New: Dell Inspiron 15 7580 | Intel i7-8565U @ 1.8 GHz | 16 GB DDR4 RAM | GeForce MX150 2 GB
Old: Lenovo IdeaPad Z510 | Intel i7-4702MQ @ 2.2 GHz | 6 GB DDR3 RAM | GeForce GT 740M 1 GB
Old: Lenovo IdeaPad Z510 | Intel i7-4702MQ @ 2.2 GHz | 6 GB DDR3 RAM | GeForce GT 740M 1 GB
