When extending a piston into a large group of particles, there will be a brief loss of FPS (a lag spike).

Seps to Reproduce:

Prerequisites:

1. Increase entity cramming (Increasing this makes the issue more obvious)

   /gamerule maxEntityCramming 100
   

2. Import this structure into your save (.minecraft\saves[world name]\generated\minecraft\structures)
   particle_piston_lag_spike.nbt

Steps:

1. Load the structure file in your world
2. Open the FPS graph (F3 + 2)
3. Extend any of the four pistons
   → A lag spike will occur
   → A lag spike would not occur

Screenshots/Videos:

Particles disabled vs particles enabled:
2023-11-27_21-57-56.mp4

Notes:

1. This is specifically due to the particles of the blaze, and not the entity itself. Testing this with zombies, or blazes with no particles has no FPS loss:
   2023-11-27_22-24-42.mp4
2. This was discovered while testing MC-158037, though that issue is different to this one.