how do i changue attack speed in a ranged item?

sorry but i could not find it, can you show me in what line of code is it?

im sorry but i do not want to change the item stack in the main hand, i want to change the attack speed of my item, can you tell me what part of this code i need to change?, heres the code

package net.mcreator.gunsmod.item;

/* imports omitted */

@GunsModModElements.ModElement.Tag
public class SniperrifleItem extends GunsModModElements.ModElement {

	@ObjectHolder("guns_mod:sniperrifle")
	public static final Item block = null;

	public static final EntityType arrow = (EntityType.Builder.<ArrowCustomEntity>create(ArrowCustomEntity::new, EntityClassification.MISC)
			.setShouldReceiveVelocityUpdates(true).setTrackingRange(64).setUpdateInterval(1).setCustomClientFactory(ArrowCustomEntity::new)
			.size(0.5f, 0.5f)).build("projectile_sniperrifle").setRegistryName("projectile_sniperrifle");

	public SniperrifleItem(GunsModModElements instance) {
		super(instance, 6);

		FMLJavaModLoadingContext.get().getModEventBus().register(new SniperrifleRenderer.ModelRegisterHandler());
	}

	@Override
	public void initElements() {
		elements.items.add(() -> new ItemRanged());
		elements.entities.add(() -> arrow);
	}

	public static class ItemRanged extends Item {

		public ItemRanged() {
			super(new Item.Properties().group(ItemGroup.COMBAT).maxDamage(100));

			setRegistryName("sniperrifle");
		}

		@Override
		public ActionResult<ItemStack> onItemRightClick(World world, PlayerEntity entity, Hand hand) {
			entity.setActiveHand(hand);
			return new ActionResult(ActionResultType.SUCCESS, entity.getHeldItem(hand));
		}

		@Override
		public UseAction getUseAction(ItemStack itemstack) {
			return UseAction.BOW;
		}

		@Override
		public int getUseDuration(ItemStack itemstack) {
			return 72000;
		}

		@Override
		public void onPlayerStoppedUsing(ItemStack itemstack, World world, LivingEntity entityLiving, int timeLeft) {
			if (!world.isRemote && entityLiving instanceof ServerPlayerEntity) {
				ServerPlayerEntity entity = (ServerPlayerEntity) entityLiving;
				double x = entity.getPosX();
				double y = entity.getPosY();
				double z = entity.getPosZ();
				if (true) {
					ItemStack stack = ShootableItem.getHeldAmmo(entity, e -> e.getItem() == SniperrifleammoItem.block);

					if (stack == ItemStack.EMPTY) {
						for (int i = 0; i < entity.inventory.mainInventory.size(); i++) {
							ItemStack teststack = entity.inventory.mainInventory.get(i);
							if (teststack != null && teststack.getItem() == SniperrifleammoItem.block) {
								stack = teststack;
								break;
							}
						}
					}

					if (entity.abilities.isCreativeMode || stack != ItemStack.EMPTY) {

						ArrowCustomEntity entityarrow = shoot(world, entity, random, 2f, 14, 5);

						itemstack.damageItem(1, entity, e -> e.sendBreakAnimation(entity.getActiveHand()));

						if (entity.abilities.isCreativeMode) {
							entityarrow.pickupStatus = AbstractArrowEntity.PickupStatus.CREATIVE_ONLY;
						} else {
							if (new ItemStack(SniperrifleammoItem.block).isDamageable()) {
								if (stack.attemptDamageItem(1, random, entity)) {
									stack.shrink(1);
									stack.setDamage(0);
									if (stack.isEmpty())
										entity.inventory.deleteStack(stack);
								}
							} else {
								stack.shrink(1);
								if (stack.isEmpty())
									entity.inventory.deleteStack(stack);
							}
						}

					}
				}
			}
		}

	}

	@OnlyIn(value = Dist.CLIENT, _interface = IRendersAsItem.class)
	public static class ArrowCustomEntity extends AbstractArrowEntity implements IRendersAsItem {

		public ArrowCustomEntity(FMLPlayMessages.SpawnEntity packet, World world) {
			super(arrow, world);
		}

		public ArrowCustomEntity(EntityType<? extends ArrowCustomEntity> type, World world) {
			super(type, world);
		}

		public ArrowCustomEntity(EntityType<? extends ArrowCustomEntity> type, double x, double y, double z, World world) {
			super(type, x, y, z, world);
		}

		public ArrowCustomEntity(EntityType<? extends ArrowCustomEntity> type, LivingEntity entity, World world) {
			super(type, entity, world);
		}

		@Override
		public IPacket<?> createSpawnPacket() {
			return NetworkHooks.getEntitySpawningPacket(this);
		}

		@Override
		@OnlyIn(Dist.CLIENT)
		public ItemStack getItem() {
			return new ItemStack(SniperrifleammoshotItem.block);
		}

		@Override
		protected ItemStack getArrowStack() {
			return new ItemStack(SniperrifleammoItem.block);
		}

		@Override
		protected void arrowHit(LivingEntity entity) {
			super.arrowHit(entity);
			entity.setArrowCountInEntity(entity.getArrowCountInEntity() - 1);
		}

		@Override
		public void tick() {
			super.tick();

			double x = this.getPosX();
			double y = this.getPosY();
			double z = this.getPosZ();
			World world = this.world;
			Entity entity = this.func_234616_v_();
			Entity immediatesourceentity = this;

			if (this.inGround)
				this.remove();
		}

	}

	public static ArrowCustomEntity shoot(World world, LivingEntity entity, Random random, float power, double damage, int knockback) {
		ArrowCustomEntity entityarrow = new ArrowCustomEntity(arrow, entity, world);
		entityarrow.shoot(entity.getLook(1).x, entity.getLook(1).y, entity.getLook(1).z, power * 2, 0);
		entityarrow.setSilent(true);
		entityarrow.setIsCritical(false);
		entityarrow.setDamage(damage);
		entityarrow.setKnockbackStrength(knockback);
		world.addEntity(entityarrow);

		double x = entity.getPosX();
		double y = entity.getPosY();
		double z = entity.getPosZ();
		world.playSound((PlayerEntity) null, (double) x, (double) y, (double) z,
				(net.minecraft.util.SoundEvent) ForgeRegistries.SOUND_EVENTS.getValue(new ResourceLocation("guns_mod:sniper_rifle_shoot_sound")),
				SoundCategory.PLAYERS, 1, 1f / (random.nextFloat() * 0.5f + 1) + (power / 2));

		return entityarrow;
	}

	public static ArrowCustomEntity shoot(LivingEntity entity, LivingEntity target) {
		ArrowCustomEntity entityarrow = new ArrowCustomEntity(arrow, entity, entity.world);
		double d0 = target.getPosY() + (double) target.getEyeHeight() - 1.1;
		double d1 = target.getPosX() - entity.getPosX();
		double d3 = target.getPosZ() - entity.getPosZ();
		entityarrow.shoot(d1, d0 - entityarrow.getPosY() + (double) MathHelper.sqrt(d1 * d1 + d3 * d3) * 0.2F, d3, 2f * 2, 12.0F);

		entityarrow.setSilent(true);
		entityarrow.setDamage(14);
		entityarrow.setKnockbackStrength(5);
		entityarrow.setIsCritical(false);
		entity.world.addEntity(entityarrow);

		double x = entity.getPosX();
		double y = entity.getPosY();
		double z = entity.getPosZ();
		entity.world.playSound((PlayerEntity) null, (double) x, (double) y, (double) z,
				(net.minecraft.util.SoundEvent) ForgeRegistries.SOUND_EVENTS.getValue(new ResourceLocation("guns_mod:sniper_rifle_shoot_sound")),
				SoundCategory.PLAYERS, 1, 1f / (new Random().nextFloat() * 0.5f + 1));

		return entityarrow;
	}

}