The highest-end MacBook Pro 13" 2018 can't run HotS even on low graphics settings

I’ve just purchased a brand-new MacBook Pro 13" from 2018. Here are its specs:

2.7 GHz Core i7 (I7-8559U)
16 GB RAM
1 TB SSD
Intel Iris Plus Graphics 655
macOS High Sierra 10.13.6

I installed HotS and went to play a game. On the first ~30 seconds or so, it ran smoothly. Then, it started freezing every 2 seconds or so, to the point it became unplayable. I checked my internet and it was fine, 100 MB/s with 13 ping. Then I decreased graphics to lowest possible and tested it offline, on training mode. It ran at ~150 FPS for about 30 seconds, then dropped to 10 FPS, then went back to ~150 FPS and so on, repeatedly. Basically, every few seconds it freezes for half a second to a second. Here is a video. That was even worse on the actual game. There is nothing running on my Mac other than HotS.

I’ve ran HotS smoothly on much weaker Macs, on high graphic settings. It doesn’t make sense that the highest end MacBook Pro 13" 2018 can’t run HotS on low graphics settings. What is going on?

Update to mojave (10.14) first and see how it behaves there.

Hey bro !

I don’t know if this will help, but try this :

Regards,

Nova