Very High CPU Usage when in game and D2DX window not in focus about d2dx HOT 2 OPEN

I looked at D2DX source and poked around, and It seems that the "sleep patches" are part of the problem.

if (ProbeUInt32(_hD2ClientDll, 0x2684, 0x15FF0A6A))
{
    PatchUInt32(_hD2ClientDll, 0x2684, 0x90909090);
    PatchUInt32(_hD2ClientDll, 0x2688, 0x90909090);
}

The 1.10 sleep patch disables the 10 ms sleep and makes things a bit worse for that version of the game.
By disabling it my CPU usage doesn't go up when alt tabbing, but It still gets high when quickly switching from the game to another window without using Alt+Tab.

from d2dx.

I'm encountering the same problem. Any time I minimize the window the fans ramp up, turbo boost takes over and the CPU gets very hot.

Any solution?

from d2dx.