Homebridge takes 2.22Gb of RAM
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**Describe The Bug:**
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Homebridge takes a unsual amount of RAM

**To Reproduce:**
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I don't know.

**Expected behavior:**
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Uses less RAM ?node -v

[**Logs:**]()
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Last events:
```
[7/25/2021, 7:51:39 PM] [Hue] Détecteur couloir: set homekit motion from 1 to 0
[7/25/2021, 7:51:39 PM] [Hue] Lumière entrée: homekit on changed from true to false
[7/25/2021, 8:05:45 PM] [Hue] Détecteur couloir: set homekit light level from 0.0001 lux to 7.9983 lux
[7/25/2021, 8:08:51 PM] [Hue] Température extérieur: set homekit temperature from 21°C to 20.8°C
[7/25/2021, 8:08:51 PM] [Hue] Température extérieur: set homekit pressure from 994 hPa to 995 hPa
[7/25/2021, 8:14:24 PM] [Hue] Température extérieur: set homekit temperature from 20.8°C to 20.7°C
[7/25/2021, 8:21:38 PM] [Hue] Température extérieur: set homekit temperature from 20.7°C to 20.5°C
[7/25/2021, 8:21:38 PM] [Hue] Température extérieur: set homekit humidity from 83% to 85%
[7/25/2021, 8:21:54 PM] [Hue] Détecteur couloir: set homekit motion from 0 to 1
[7/25/2021, 8:21:54 PM] [Hue] Lumière entrée: homekit brightness changed from 100% to 100%
[7/25/2021, 8:21:54 PM] [Hue] Lumière entrée: homekit on changed from false to true
[7/25/2021, 8:21:54 PM] [Hue] Lumière entrée: homekit color temperature changed from 153 mired to 436 mired
[7/25/2021, 8:21:56 PM] [Hue] Lumière entrée: set homekit color temperature from 436 mired to 153 mired
[7/25/2021, 8:23:24 PM] [Hue] Détecteur couloir: set homekit motion from 1 to 0
[7/25/2021, 8:23:24 PM] [Hue] Lumière entrée: homekit on changed from true to false
```

**Homebridge Config:**
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```json
{
    "bridge": {
        "port": xxx,
        "pin": "xxx",
        "name": "Homebridge 693C",
        "username": "xxx"
    },
    "platforms": [
        {
            "tempUnits": "c",
            "name": "Config",
            "auth": "form",
            "theme": "dark-mode",
            "port": 8134,
            "platform": "config",
            "lang": "auto"
        },
        {
            "nativeHomeKitSensors": true,
            "name": "Hue",
            "anyOn": true,
            "groups": false,
            "nativeHomeKitLights": true,
            "lights": true,
            "hosts": [
                "192.168.1.xxx"
            ],
            "effects": true,
            "schedules": false,
            "nupnp": true,
            "scenes": true,
            "linkButton": false,
            "excludeSensorTypes": [],
            "platform": "Hue",
            "sensors": true,
            "users": {
                "xxx": "xxx"
            },
            "resource": true,
            "rules": true
        },
        {
            "name": "TplinkSmarthome",
            "addCustomCharacteristics": true,
            "deviceTypes": [
                "plug",
                "bulb"
            ],
            "platform": "TplinkSmarthome"
        }
    ],
    "accessories": []
}
```

**Screenshots:**
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Yesterday : 
![image](https://user-images.githubusercontent.com/206181/126909488-3f36d611-de3d-4c8a-a026-8e0b9926d739.png)

Today : 
![image](https://user-images.githubusercontent.com/206181/126909508-8be708c7-73e6-4229-8459-ad8445f45e19.png)


**Environment:**

* **Node.js Version**: 14.17.3
* **NPM Version**: 6.14.13
* **Homebridge Version**: 1.3.4
* **Operating System**: Docker on unRAID
* **Process Supervisor**: Systemd / init.d / pm2 / launchctl / Docker / hb-service / other / none

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