ISP limits 4G LTE performance through throttling.
ISP limits 4G LTE performance through throttling.
A VPN operates at the TCP connection stage, while throttling and congestion occur at the 4G modem to cell tower level—well before TCP is even considered. You can change a Lada into a Ferrari, but if the road beneath it is bad, you won’t move quickly.
Consider contacting your ISP to see if the slow speed is due to network congestion. If so, request they increase capacity at the tower. They may not agree, but it’s worth asking—there’s always a possibility they’ll act soon.