Playing on exp .058 seems to cause very heavy CPU load meaning the computer's temperature becomes higher than it has ever been playing on previous patches. This was with both the old and the new UI.
Note, however, I am only playing on a pretty below average setup:
Lenovo G580 laptop
CPU: Intel i5 3230m (2.6ghz)
Integrated GPU: Intel GFX4000
Don't know if log files are of any use re: this issue but they are provided below.