cn/r proxy result speed is 0.00
hi dears.
i use xmrig-proxy and xmrig miner to test connectivity then i will load it on my network but 
when i config xmrig-proxy and xmrig , miner works well and the speed is about 130.0 h/s and the connection to miner is ok, so the proxy side speed is always 0.00 and nothing accepted by nicehash. 
below is my config and screenshot.
**xmrig-proxy**
```
{
    "access-log-file": null,
    "access-password": null,
    "algo-ext": true,
    "api": {
        "id": null,
        "worker-id": null
    },
    "http": {
        "enabled": false,
        "host": "127.0.0.1",
        "port": 0,
        "access-token": null,
        "restricted": true
    },
    "background": false,
    "bind": [
        {
            "host": "0.0.0.0",
            "port": 3333,
            "tls": false
        },
        {
            "host": "::",
            "port": 3333,
            "tls": false
        }
    ],
    "colors": true,
    "custom-diff": 0,
    "donate-level": 0,
    "log-file": null,
    "mode": "nicehash",
    "pools": [
        {
            "algo": "cn/r",
            "url": "stratum+tcp://cryptonightr.usa.nicehash.com:3375",
            "user": "wallet_address",
            "pass": "x",
            "rig-id": null,
            "keepalive": true,
            "enabled": true,
            "tls": false,
            "tls-fingerprint": null,
            "daemon": false
        }
    ],
    "retries": 2,
    "retry-pause": 1,
    "reuse-timeout": 0,
    "tls": {
        "protocols": null,
        "cert": null,
        "cert_key": null,
        "ciphers": null,
        "ciphersuites": null,
        "dhparam": null
    },
    "user-agent": null,
    "syslog": false,
    "verbose": false,
    "watch": true,
    "workers": true
}
```

**xmrig miner**
```
{
    "api": {
        "id": null,
        "worker-id": null
    },
    "http": {
        "enabled": false,
        "host": "127.0.0.1",
        "port": 0,
        "access-token": null,
        "restricted": true
    },
    "autosave": true,
    "version": 1,
    "background": false,
    "colors": true,
    "randomx": {
        "init": -1,
        "numa": true
    },
    "cpu": {
        "enabled": true,
        "huge-pages": true,
        "hw-aes": null,
        "priority": null,
        "asm": true,
        "argon2-impl": null,
        "argon2": [0, 1, 2, 3],
        "cn": [
            [1, 0],
            [1, 2]
        ],
        "cn-heavy": [
            [1, 0]
        ],
        "cn-lite": [
            [1, 0],
            [1, 2],
            [1, 1]
        ],
        "cn-pico": [
            [2, 0],
            [2, 1],
            [2, 2],
            [2, 3]
        ],
        "cn/gpu": [0, 1, 2, 3],
        "rx": [0, 2],
        "rx/wow": [0, 2, 1],
        "cn/0": false,
        "cn-lite/0": false
    },
    "donate-level": 1,
    "donate-over-proxy": 1,
    "log-file": null,
    "pools": [
        {
            "algo": "cn/r",
            "url": "stratum+tcp://127.0.0.1:3333",
            "user": "",
            "pass": "x",
            "rig-id": null,
            "nicehash": true,
            "keepalive": true,
            "enabled": true,
            "tls": false,
            "tls-fingerprint": null,
            "daemon": false
        }
    ],
    "print-time": 60,
    "retries": 5,
    "retry-pause": 5,
    "syslog": false,
    "user-agent": null,
    "watch": true
}
```

[this is screenshot](https://drive.google.com/file/d/1ICbC57Xym_jpIkHXJGFIMNIECDFj-o29/view?usp=sharing)
