Shot Speed

Shot Speed is the attribute that governs how quickly an individual tear travels and is represented by a speeding ball.

Shot Speed also affects the effective range of the tears. As the range stat determines how long tears will stay in the air (and not distance traveled), a lesser shot speed reduces effective range.

Shot speed measures the velocity of each tear in contrast to the Tears stat, which measures tear frequency.

A tear traveling at 1.0 shot speed crosses one tile in 4 ticks (8 frames, or 0.133 seconds), giving a velocity of 7.5 tiles per second. Higher and lower values of the attribute scale the velocity linearly.

Notes[]

All characters start with the same shot speed except for Samson, who has 1.31 shot speed, Jacob, who has 1.15 shot speed, Esau, who has 0.85 shot speed, and Eden, whose shot speed can be anywhere between 0.75 and 1.25.
A higher shot speed will increase the directional knockback of enemies hit by the tears.
Having a high shot speed is not always desirable. While a high shot speed means enemies are easier to aim at, and effective range is increased , it also means more knockback, which can make enemies move in unpredictable ways, potentially damaging Isaac and making it harder to land consecutive shots. Some items will also directly benefit from low shot speed, such as Tech X and Trisagion, and particularly items that grant homing tears, such as Godhead and Spoon Bender.
Items that reduce shot speed cannot lower it past 0.6.

Items that affect shot speed[]

Active Items[]

Name	ID	Icon	Quote	Description	Quality
Dataminer	5.100.481		109	Displaces enemy sprites for the current room, randomly increases one stat and decreases another.	0

Passive Items[]

Name	ID	Quote	Description	Quality
Blue Cap	5.100.342	HP + tears up + shot speed down	Gives one full Red Heart container, +0.7 tears, and -0.16 shot speed. Heals 1 additional Red Heart.	3
Cat-o-nine-tails	5.100.165	Shot speed + damage up	+1 damage, +0.23 shot speed.	3
Dead Onion	5.100.336	Toxic aura tears	Grants piercing and spectral tears. Increases tear size (without increasing damage) while greatly reducing range and shot speed.	2
Eve's Mascara	5.100.310	DMG up, tears + shot speed down	Doubles damage, halves tears stat, and greatly reduces shot speed. Doubles damage, 0.66x tears multiplier, and greatly reduces shot speed.	3
Experimental Treatment	5.100.240	Some stats up, some stats down	Randomly increases and decreases some of Isaac's stats. Increases four random stats and decreases the other two.	1
Godhead	5.100.331	God tears	Grants homing tears with a damaging halo. +0.5 Damage, -0.3 Tears -0.3 Shot Speed, +0.8 Tear Falling Speed, and +1.2 Range. Grants homing tears with a damaging halo. +0.5 Damage, -0.3 Tears, and -0.3 Shot Speed.	4
Lost Contact	5.100.213	Shielded tears	Isaac's tears can hit and destroy enemy projectiles. -0.15 shot speed.	2
Magic 8 Ball	5.100.194	Shot speed up	+0.16 shot speed, spawns a random tarot card. Increases the chance of finding a Planetarium.	1
Missing No.	5.100.258	Syntax error	Randomizes all passive items and stats upon pickup and at the start of each succeeding floor.	0
My Reflection	5.100.5	Boomerang tears + DMG up + luck down	Gives Isaac's tears a boomerang effect. +1.5 range, +1 tear falling speed, x1.6 shot speed multiplier. 2x + 1.5 range, +1.5 damage, -1 luck, 1.6x shot speed multiplier.	2
Sacred Heart	5.100.182	Homing shots + DMG up	Adds a Red Heart Container. Grants homing tears, a x2.3 Damage multiplier, +1 flat Damage, -0.4 Tears, -0.25 Shot Speed, and +4.125 Range. Adds a Red Heart Container. Grants homing tears, a x2.3 Damage multiplier, +1 flat Damage, -0.4 Tears, and -0.25 Shot Speed.	4
Safety Pin	5.100.339	Evil + range + shot speed up	Grants one Black Heart, +5.25 range, +0.5 tear falling speed, +0.16 shot speed. Grants one Black Heart, +2.5 range, +0.16 shot speed.	1
Screw	5.100.255	Tears + shot speed up	+0.5 tears, +0.2 shot speed.	3
Speed Ball	5.100.143	Speed + shot speed up	+0.3 speed, +0.2 shot speed.	2
Stem Cells	5.100.176	HP + shot speed up	Grants one full Red Heart container and +0.16 shot speed. Heals 1 additional Red Heart	1
Tooth Picks	5.100.183	Tears + shot speed up	+0.7 tears, +0.16 shot speed.	3
Torn Photo	5.100.341	Tears + shot speed up	+0.7 tears, +0.16 shot speed.	3
Crown Of Light	5.100.415	The untainted gain power	+2 Soul Hearts. While Isaac has no empty red hearts, grants 2x damage, increased range, and -0.3 shot speed. Regardless of health, the crown deactivates for the current room when Isaac takes damage.	4
Tractor Beam	5.100.397	Controlled tears	Isaac's tears are bound to a beam emitting in the direction he's firing. +0.5 Tears, +5.25 Range, +0.16 Shot Speed. +1 Fire Rate, +2.5 Range, +0.16 Shot Speed.	3
Dark Prince's Crown	5.100.442	Loss is power	When at exactly one Red Heart, +0.75 tears, +1.5 range, and +0.2 shot speed. When at exactly one Red Heart, +2 fire rate, +1.5 range, and +0.2 shot speed.	1
A Bar of Soap	5.100.564	Tears + shot speed up	+0.5 Tears, +0.2 Shot Speed.	2
Binge Eater	5.100.664	All you can eat	+1 Red Heart Container and fully heals Isaac. Item pedestals also offer a random food item. Picking up a food item temporarily grants +3.6 damage and permanently boosts 2 stats.	4
Candy Heart	5.100.671	Power of love	Gives Isaac a permanent stat boost whenever he heals with Red Heart pickups.	1
Eye of the Occult	5.100.572	DMG up + range up + controlled tears	+1 damage, +2 range, -0.16 shot speed. Isaac's tears can be controlled mid-flight with tear controls.	3
Sausage	5.100.669	All stats up	Adds a Red Heart Container, fully heals Isaac, and gives +0.2 Speed, +0.5 Damage, +0.5 Tears, +2.5 Range, +0.2 Shot Speed, and +1.0 Luck. Increases the chance of encountering a Devil Room, Angel Room, and/or Planetarium each by 6.9%.	3
Soul Locket	5.100.686	Power of faith	Gives Isaac a permanent stat boost whenever he picks up a Soul Heart.	1
Stye	5.100.731	DMG + range up	Tears fired from Isaac's right eye have +28% Damage, +6.5 Range, and -0.3 Shot Speed.	2

Trinkets[]

Name	ID	Quote	Description
Whip Worm	5.350.27	Wooosh!	Increases shot speed by 0.5.
Lazy Worm	5.350.66	Pft	Decreases shot speed by 0.5. Increases range by 4.
Cracked Crown	5.350.92	Stat booster	Decreases Isaac's tear delay by 20%, and improves the effectiveness of his other stat upgrades by 33%. Improves the effectiveness of stat upgrades by 20%.
Dim Bulb	5.350.101	I think it's broken	Provides a boost to all stats when Isaac's active item is completely uncharged.
Vibrant Bulb	5.350.100	It needs power	Provides a boost to all stats when Isaac's active item is fully charged.

Other[]

In co-op, Long Baby will occasionally briefly increase range, shot speed, and tear falling speed. Dark Baby will occasionally briefly increase all stats, including shot speed.
The Era Walk card decreases shot speed and increases speed for the current room.

The Binding of Isaac: Rebirth