Under Govnah tap Profile, tap Advanced Settings, tap CPU Frequency...
There are a whole list of settings there.
Min Freq set to 150 MHz
Powersave Bias was the big one, IMHO.... I set it to 10 (out of 1,000) stock is 0
Screenstate set to enable and Screen Off Max Freq set to 300 MHz
Make sure the Max Temp and Battery Low limits are in place...
That was it really.
IDK if all that is enabled under the Default Profile with UberKernel... I'm using the OnDemandTcl Profile.
To be fair it is a small, but appreciable difference. Maybe an extra hour or two depending on how heavy my use of the phone and web.
BTW - Did you ever get that Mugen 1400 battery???