Optimize VPS Proxy & VLESS Configuration

Job ID: 40118603

Budget: ₹800 – ₹2,000 INR

I am looking for an expert in Linux networking and Xray/V2Ray protocols to troubleshoot and optimize my personal VPN setup. I have a VPS running Ubuntu with the 3X-UI panel, but I am experiencing severe throttling (2G speeds) or total connection failure depending on the configuration.

Current Setup:

Server: Ubuntu VPS (Root access available).

Panel: 3X-UI (Xray).

Client: Hiddify (Android/PC).

Current Status: VLESS+TCP connects but is extremely slow (throttled). VLESS+gRPC fails to connect. BBR is enabled but speeds remain low.

The Task:

Update & Configure Xray Core: Ensure the server is running the latest Xray core to support xtls-rprx-vision (Flow).

Optimize Speed: Fix the severe throttling issue. This may involve properly configuring TCP Vision, Reality, or switching to an optimized Shadowsocks-2022 setup.

Fix Connectivity: Resolve SNI/Target mismatches to ensure stable connections (fixing the "Internet not working" error).

Deliverable: 2-3 high-speed, stable subscription links (VLESS Reality & VMess/Shadowsocks backup) that work on Hiddify without disconnection.

Required Skills:

Advanced knowledge of Xray-core / V2Ray.

Experience with 3X-UI or Marzban panels.

Deep understanding of TCP BBR, Congestion Control, and Linux Network Tuning.

Familiarity with GFW/ISP Throttling evasion techniques (Reality, Vision, uTLS).
Related categories: Linux Apache Ubuntu Debian Network Security VPN Performance Tuning Flow