Wireguard traffic wrapped inside relay protocol add significant latency

I tried to wrap wireguard traffic inside relay+ws and relay+tls, it adds significant latency.

The purpose is circumvent ISP QoS on UDP protocols, especially international traffic.

Ping inside plain wireguard shows 180ms latency, if I wrap wireguard inside wstunnel using either ws and wss protocol, latency basically stays the same (180ms).

For gost, relay+ws leads to around 320ms latency, while relay+tls leads to 500ms of latency.

I'm just wondering if there is anything that can be done about it