Particle system

Hi guys, I need your help, I want to optimize my particle system, how can I optimize it? I tried to connect the particle system with the player, but the frames never exceed 30 fps, but when I delete the frames are 90 fps, in the viewport it runs at 90fps and when I test it out of the run at 30fps. P.D: the system of particle it’s rain

The most likely cause of the performance issue is that your particle system either has a Light module, or you’re spawning too many particles without the GPU module. But nobody can tell you for sure unless we get the details.
Could you post a picture of your particle system in the editor?