Hardware Load of Cryptographic Algorithms
Running a secure connection requires continuous mathematical computations for every single network packet. Older protocols like OpenVPN heavily load processor cores, while background session maintenance services constantly wake up the smartphone's radio module to send heartbeat check packets.
How to Optimize Battery Consumption
- Switch to lightweight modern protocols like WireGuard or VLESS with hardware acceleration
- Disable constant background tunnel activity when active web surfing is not required
- Enable split tunneling to encrypt traffic only for essential apps
- Increase the Keepalive connection check interval in your mobile client settings