I'm not interested in gaming, I use programmes that are very ram dependant like Inventor, autodesk CFD, flow simulation, onenote...
I use them simultaneously and the laptop gets very laggy. CPU usage is high, but it can cope with it. Ram in the other hand is at it max. A higher running frequency ram would help me as well as more ram. That's why I'm seeking for help.
I bought a laptop bc I use it at the uni and at home, I needed it to be portable. Please don't tell me I should've bought a desktop.
Thanks for your time!
You got the wrong laptop for your use, the Yogas are for simple use cases like taking notes, spreadsheets, web browsing. For what you are using it you need a standard laptop with better specs. More RAM is good yes if it's maxed out when you check it in taks manager, faster RAM not so much especially if you have to mess with the system. You are looking at single digit % speed increase, maybe, in some tasks, for trying to do something that may brick the system.
Even a used higher end laptop wold be better for you than a new basic use one. I have a Lenovo W520 which is years old, but I like using it and working on it more than pretty much any new system, 4 RAM slots, plenty of drive options, solid build, i7 CPU with 4 cores and 8 threads, large enough for good cooling without sounding like a plane about to take off.