Creating a Particle swarm

I want to simulate a group of fireflies flying around a point.

I’ve tried a lot of things like rotating the particles around a point, flocking etc…

Most of them worked well on PC but not on mobile (Android)

On mobile the frame-rate drops.

Is there any efficient method of doing this?

I started using Unity a few weeks back :sunglasses:

hmm u could make a small small sphere and use a single partical that with the proper gravity so it doenst fo up nor down and stays where its at and follows the sphere making a proper glow