Also done that, I dropped to DX11 and i dont stutter anymore?? Playing on ultra..with 80+ fps
i got this from Alienware;
As the coffeelake processor supports higher clock rate than kabylake or older processors, users may easily notice that the Alienware 13R3, 15R3, 15R4, 17R4, 17R5 generates more heat compared to previous generation platforms. Therefore Dell engineering optimized the system to tolerate higher temperature from design perspective, and the new specification for Alienware 15 R4 / 17 R5 is:
CPU peak temperature will be no greater than 100 degree C
Below is the table for the thermal specification in component basis. For Alienware 13R3, 15R3, 17R4, this is applicable with BIOS version S1.0.9_K1.0.1 ,S1.0.9_K1.0.1 or higher.
Thermal peak specification
Download and install any temperature monitoring tool such as HWiNFO64 or RealTemp and reply with screenshots of the results, if the temperatures exceed the previous figures.