Difference between native wireguard and bundled xray wireguard in terms of performance.

[TenderDen]

I want to set up Cloudflare Warp as an outbound in my server. All the traffic will go through Warp. I want to ask how do native wireguard and bundled xray wireguard differ in terms of performance. In my opinion, native wireguard would perform better, as it can access kernel for performance gain. Performance is crucial for me.

I should say that I have tried using native wireguard as an outbound. I have bound the wg0 interface in freedom using sockopt, as follows:

{
    "protocol": "freedom",
    "tag": "direct",
    "streamSettings": {
        "sockopt": {
            "interface": "wg0"
        }
    }
}

It works. The problem is that it does not fetch the external IPv6 address from the interface. I am sure that the wg0 interface has an external IPv6 address, as this command:
curl --interface wg0 ipv6.icanhazip.com
does show the external IPv6 address of the wg0 interface.
The bug is not reproducible when bundled xray wireguard is being used instead.