NEW Cheap Dual longboard ESC brake delay problem

Hy! I ordered a new ESC on ebay.

When I use the brake, I immediately heard someting click in the motor, but the brake effect would come later. How to fix it? Is it possible? Thanks for the help! specification: 36v, dual motors, whithout hall sensers. Electric Skateboard Dual Motor ESC Upgrade DIY Kit Longboard Control with Remote | eBay

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This looks like a non-configurable, proprietary china ESC. I’d ask the seller or return it…