How to reproduce

Repeat the following two steps:

1. Use /locate to locate a pillager outpost in 22w13a and teleport to the specified coordinates.
2. Use /teleport to some far location, for example >2,000 blocks away.

When this has been done for a few times, chunks nearby the found location in step 1 start to struggle to emerge, and (in my case) in more than half of the times the loading will fail.

Control tests

When I do the steps for other structures e.g. desert pyramids in 22w13a, or for pillager outposts in 22w12a, chunk loading is much quicker, even when they situate farther than in this case.