You're going to run into a common problem with laptops... that's an APU processor, combined CPU and GPU, and those don't do particularly well with Minecraft, which requires a lot of CPU and a lot of GPU. It's also a 2.0 GHz proc, which is really not going to do very well. Core count is meaningless because Minecraft is notoriously bad at multithreading.
Even a Ryzen 3 3300X would be better than that Ryzen 7 4700U assuming it was paired with any sort of dedicated graphics card. Hell, even a 1050Ti would be better.
About the only thing that laptop has going for it is the RAM, which is pretty solid.
Overclocking on laptops is a recipe for temperature throttle and would likely do more harm than good to your performance, since they have notoriously poor heat management due to the smaller footprint available.
Optifine is a bad thing. It makes things look better, but most of its optimizations can be had better with things like FoamFix or BetterFPS. It also doesn't play well with several mods and how they render things. In general, Optifine in a modded environment is begging for trouble.
tl;dr: You *might* be able to get smaller packs to run, but I wouldn't expect very good performance. It would struggle to maintain a steady 30 FPS on virtually any pack, probably even straight vanilla Minecraft.