I'm currently in the process of installing FCOM mods, and was wondering if there was any sort of skill progression reducer included? I noticed one while I was configuring Frans, but was told not to use the skill progression slower there, as it would cause conflicts. Is there one included elsewhere in FCOM, or will I have to download a seperate one myself? Thanks!

With FCOM, skill progression is determined by OOO, so c. 3 times slower than vanilla. I'd recommend Progress (requires OBSE) which gives you full control over it. It also comes with a pre-figured ini for OOO IIRC that you can start from. But OOO comes with Level Rates Modified and some other optional skill progress esps - so alternatively you can use one of them.