Your logs will tell you exactly which category your problem falls into:
If V2Ray is configured to forward DNS queries through a proxy outbound (e.g., VMess), and that proxy path has high latency or packet loss: v2ray slow dns server
There are several reasons why V2Ray users may experience slow DNS server issues: Your logs will tell you exactly which category
To fix a slow DNS server in V2Ray, you must optimize your client or server JSON configuration file. Below is a structured guide to building a high-performance DNS block. 1. Implement a Dual-DNS Strategy v2ray slow dns server