Using proxy to remove SSL overhead from client

I know many application uses reverse proxy to reduce SSL overhead from the application, where handshake and encryption/decryption are between the client and proxy, and the back-end app get the stripped data from proxy on HTTP or other protocol.

I heard it is possible to use same concept to reduce SSL overhead from the client, but couldn’t find any reference or guide for such configuration. I’m fully aware it is insecure method.