Since I installed Lion I've noticed a huge RAM consumption that slows down everything. I then installed Mountain Lion that did not solve anything. I installed a FreeMemory software to cleana and free some space but it annoys me having to use it continuously. I have 4 GB installed, at startup I only have arround 2 GB available and then as I open and close some apps it never fully recovers until I get 10 MB. Any ideas?