Yes, and you are getting main thread limited.
Take some time to read some of Grabber’s posts in this thread as he walks through a very good way to quell those CPU spikes, which cause stutters. Usually at airports so it is best to configure for this on the ground.
Now, this MAY NOT BE the solution to your problem, but I really do need you to try it, so at least we can rule it out as your issue. Because it really is the issue for 90+% of the stutters we get in sim.
Let me know how it works, or doesn’t. But until you try it, everyone is going to assume that is your issue. Because it almost always is.