Adobe Premiere Pro CC is slow on Lenovo Y-50 70 Laptop?

When I boot Adobe premiere pro cc on the laptop, it is very slow and the playback is also very slow in which i have to set it to 1/4 for playback and for paused quality. There's a lot of lag even then when play the video from start to finish.

Here are the specs:

4th Generation Intel Core i7-4720HQ Processor (2.60GHz 1600MHz 6MB)
Windows 8.1 64
15.6" FHD IPS LED Backlight (1920x1080)
NVIDIA GeForce GTX 860M 4GB
16.0GB PC3-12800 DDR3L SDRAM 1600 MHz
Hybrid 1TB 5400 RPM+8GB SSHD
None
Intel® Dual Band Wireless-AC 3160
Bluetooth Version 4.0
One year
4 Cell 54 Watt Hour Lithium-Ion

What is the issue?

Added (1). I also run the software on the high-performance NVIDIA processor

Have all your updates and drivers been made completely up to date - a 4 cell battery is a bit feeble - see if there's a 9 cell

Yeah, try to check drivers. More than likely its just running slow because of your hardware, yes that hardware is good for a laptop but in comparison to a high end desktop its nothing and that gpu is fairly weak

Yeah, try to check drivers. More than likely its just running slow because of your hardware, yes that hardware is good for a laptop but in comparison to a high end desktop its nothing and that gpu is fairly weak

Yes, adobe premier is a highly advanced program designed for use on nicer computers.