Pixeline is a Pixelmon (Pokémon mod) modpack created over a server-side base that is shared between two modpacks, allowing someone with a potato PC to play alongside someone who wants a better graphic experience.
Pixeline Lite is a lightweight option for Pixeline, having various performance mods to increase your FPS, and different from the standard modpack, this modpack doesn't have graphical mods that don't affect the multiplayer compatibility.
Visual Enhanced and Serverpack
Pixeline has an alternative version with visual mods created for users with a powerful PC. You can download it here.