Need help, I was losing my mind. PLEASE!!! (Tropico 5)

Decided to buy yourself is a disgrace to ride with friends. In the menu, all good, no problems, when I start training and start game, then fps sags to 10. Game bought in steam, the computer will not tell you what is weak for this game. All fire wood updated, all the components reinstalled, the problem does not get it......
PC features:
windows 10
intel core i5-4570 3.20 GHz
asus amd radeon r9 290 series
8 gb ram
500 gb hdd
PLEASE HELP I HAVE ALL THAT CAN BE POKED AND PRODDED