Personally, my dynamite with an effort of +10 exploded with almost no lags, but +20 already with noticeable lags, if you set a higher value, the game will simply freeze indefinitely.
How to install the mod:
- Install Forge
- Install all additional mods if specified.
- Download mod and copy to .minecraft / mods
- Launch the forge version of the game in the launcher.
Download Mod Configurable TNT: