This thing shows entity tick times and structure max gen times and also the last task server was busy doing if the server stops responding (frozen world, 0 TPS).
Press 'O' to see the snapshot screen where you can also turn on realtime overlay.
The mod only works in singleplayer and does nothing on dedicated servers.
Tick lag caused by a villager example:

| Version | Minecraft | Loader | Download |
|---|---|---|---|
|
TPS Detective 1.3.0 1.3.0 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.3.0 1.3.0 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.2.0 1.2.0 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.2.0 1.2.0 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.1.2 1.1.2 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.1.1 1.1.1 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.1.1 1.1.1 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.1.0 1.1.0 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.1.0 1.1.0 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.0.5 1.0.5 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.0.5 1.0.5 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.0.4 1.0.4 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.0.4 1.0.4 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.0.3 1.0.3 |
1.21.1
|
neoforge
|
Download |
|
TPS Detective 1.0.3 1.0.3 |
1.20.1
|
forge
|
Download |
|
TPS Detective 1.0.2-fix 1.0.2-fix |
1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6
|
forge
|
Download |