Steps to reproduce:

1. Download and import attached project.
2. Press play.
3. Wait for 3-5 secs.

Crash!

Notes: Sometimes windows just throws not responding window, sometimes crashes. FPS drop is huge, latency huge (on CPU reaches 600 ms and more). On 5.3* it works well, no crash, no latency/FPS drop.

Note 2: When particles are instantiated all at once, it does not crash.

Regression from: 5.3.4f1