Are you certain it has a 144 hz refresh rate?

Yes, the monitor is 144 hz. Whether the gtx 1060 can push 144 fps in the game you are playing or not is a different issue, totally unrelated. If you want 144 fps in the gpu-intensive game you are playing, you need to compromise; lower the graphics settings until you get there.

does every single model of this computer throttle because of overheating or is it just a common issue?

Throttling is because the TDP of Intel Processors placed into high-performance laptop/mobile platforms rely on marginal resource utilization (base clock frequency of 2.2GHz). It's just not reasonable to expect a 6-core, 12-thread processor to run at boost speeds nearly 2.0GHz over that of base frequency and have a dedicated graphics solution running full-bore too. That's why the TDP rendered 45W isn't based on boost speeds. Tweaking voltages and current limits with Intel Extreme Tuning Utility paired with cooling/chilling pad that aid to force air into the bottom of this machine goes a long way to extract performance from the platform. The density of components in a laptop platform just cannot deliver the expectation many have- that performance is like that of a same-generation desktop processor in mobile format. This is not an Acer-specific symptom of the inaccuracy the processor maker uses, intentionally vague language, to leave folks to assume that expectation that isn't met. By using XTU, you can shift the limit to that of current, rather than thermals; an indication that the chip maker is responsible for your failed expectations. I really like the laptop and really like the Intel CPU inside; but, I had realistic expectations going in.

What kind of warranty does it come with? Any idea of the turn around time when shipping it in for service?

This comes with a 2-year manufacturer's warranty against hardware defects. Turnaround time is 7-10 days once the system is received in. Warranty details are posted here for your convenience: https://www.acer.com/ac/en/US/content/standard-warranty

Brand	acer
Manufacturer	Acer Computer
Series	ACER Predator Helios 300
Product Dimensions	38.99 x 26.59 x 2.67 cm; 2.5 kg
Batteries	1 A batteries required. (included)
Item model number	PH315-51-78NP
Is Discontinued By Manufacturer	No
Color	Black
Form Factor	Intel
Item dimensions W x H	39 x 26.6 x 2.7 cm
Standing screen display size	15.6 Inches
Screen Resolution	1920 x 1080 pixels
Resolution	1920x1080 ピクセル
Processor Brand	Intel
Processor Type	Core i7
Processor Speed	4.1 GHz
Processor Count	6
RAM Size	16 GB
Memory Technology	DDR4
Computer Memory Type	DDR4 SDRAM
Maximum Memory Supported	32 GB
Memory Clock Speed	2666 MHz
Hard Drive Size	256 GB
Hard Disk Description	SSD
Hard Drive Interface	Solid State
Hard Disk Rotational Speed	5400 RPM
Audio Details	Speakers
Studio Monitors	This speaker supports Dolby Audio Premium with improved audio quality
Graphics Coprocessor	NVIDIA GeForce GTX 1060
Graphics Chipset Brand	Intel
Graphics Card Description	Dedicated
Graphics RAM Type	GDDR5
Graphics Card Ram Size	6 GB
Graphics Card Interface	Integrated
Connectivity Type	Wi-Fi
Wireless Type	802.11ac
Number of USB 2.0 Ports	2
Number of HDMI Ports	1
Voltage	240 Volts
Wattage	180 W
Optical Drive Type	No Optical Drive
Power Source	Battery Powered
Operating System	Asymmetrical
Battery life on standby	7 Hours
Average Battery Life (in hours)	7 Hours
Are Batteries Included	Yes
Lithium Battery Energy Content	32 Watt Hours
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	500 Grams
Number Of Lithium Ion Cells	4
Nombre de cellules Lithium-Métal	20
Item Weight	2.5 Kilograms

【エイサー】Acer Predator Helios 300 Gaming Laptop, 15.6" Full HD IPS Display w/ 144Hz Refresh Rate, Intel 6-Core i7-8750H, GeForce GTX 1060 6GB Overclockable Graphics, 16GB DDR4, 256GB NVMe SSD, PH315-51-78NP

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