Update on this, I bought the MX 4 and used it, the temperature did not change so I guess its a cooler thing. I initially wanted to use a X pattern for the most coverage but when I first squeezed I kinda got a little bit too much on it, so I ended up using the spread method by taking a spreader and spreading the paste on the cpu.
Edit: tho the cinebench score did increase a little to ~3220.