ParticleSystem.TextureSheetAnimationModule.frameOverTimeMultiplier

Description

Frame over time mutiplier.

This method is more efficient than accessing the whole curve, if you only want to change the overall frame over time multiplier.

using UnityEngine;

public class ExampleClass : MonoBehaviour
{
    private ParticleSystem ps;

    void Start()
    {
        ps = GetComponent<ParticleSystem>();

        var main = ps.main;
        main.startLifetimeMultiplier = 2.0f;

        var tex = ps.textureSheetAnimation;
        tex.enabled = true;
        tex.numTilesX = 4;
        tex.numTilesY = 2;
        tex.frameOverTimeMultiplier = 2.0f;
    }
}