Mods in Mods-folder do not show under MODS INSTALLED (Modtek)

Hi!

I think I have successfully installed Modtek v.4.4.1.0 (by following the instructions on the [Github page](https://github.com/BattletechModders/ModTek)).

I am trying to install [BattletechPerformanceFix-2.13](https://github.com/m22spencer/BattletechPerformanceFix/releases).

I have dropped the mod files into the Mods folder.

Modtek appears to load successfully (green loading bar appears on startup), and also verified by the version number shown at the bottom of the startup menu.

I click the MODS icon to access the mods menu.

Only "MODTEK" is shown.

**Why doesn't BattletechPerformanceFix appear as an installed mod?**

Any help appreciated.