Macbook Pro 2018 OS Mojave - Serious Lagging

Hi i am running a 2018 Macbook Pro 2.3GHz Intel Core i5 with Intel Iris Plus Graphics 655 1536 MB.
Once i run the software, there will a be a lag every second. Anyone have this issue?

I have tried switching to low resolution and Off 3D World Volume. But still the same.

Please help. It’s rather annoying when you ride with this serious lag.
i have a youtube video if anybody want to view it.