Help in reduce circuit losses

[GH Crash]

Any suggestions on how to reduce the resistance of the attached circuit.

A supercapacitor (EDLC) is used to power a small motor. There is an ATTiny85 chip in the circuit that is used as a timer and a PWM controller for the motor. The problem that I'm loosing about half a volt between the capacitor's voltage and the voltage across the motor's leads. I need to minimize losses in the circuit as much as possible.

Can you suggest means to reduce voltage loses to the motor?

 

[vidalv]

In addition, you can find why C8 can be used, please read this Toshiba document available here:

https://toshiba.semicon-storage.com/info/application_note_en_20180726_AKX00068.pdf?did=59460

See chapter 4.4.3, could explain this choice.

 

[GH Crash]

Thanks to all of you who have responded. Not only has your responses improved every component of the circuit, it has greatly increased my knowledge level.

Let's call this thread ended. But I'm sure I will have other dumb electronics questions in the future.

 

[vidalv]

George, thank you to you, no question is stupid, only the answer can be!