All driver versions released after version 18.9.3 underestimate the frequencies of the GPU and GDDR. As a result, the FPS is very low. Under load, the frequencies do not return to their original values. Without monitoring programs do not notice. I'm tired of writing in support of AMD. Already several driver versions and the problem is not fixed.
Windows 10 (1803)
Pentium G3220, 3000 MHz
Asus H81M2 BIOS 2203
4GB DDR3 x 2 (1333mh)
MSI HD 7730 1gb gddr5 (MSI R7730-1GD5V1)