When you are building or researching something, e.g. Upgrade to fortified wall in the university. Click on the upgrade, then on the right hand side, by the building name,there should be a percentage of the research process, put the cursor on the percentage and press X repeatedly on the percentage. The percentage speed should double.
PS. I think it works on the PC version but you might as well type in "aegis" to get instant build, or research and so on HOPE IT HELPS