Exists query is quiet slower than terms query

Elastic Stack Elasticsearch
1

document like

 {
"address": {
    "street": "ss",
    "city": "ffff",
    "country": "jjjj"
},
"links": [
    {
        "name": "Google",
        "url": "http://www.google.com"
    },
    {
        "name": "Baidu",
        "url": "http://www.baidu.com"
    },
    {
        "name": "SoSo",
        "url": "http://www.SoSo.com"
    }
]
}

I have almost 1 billiion docs use about 3T disk,druring 10 servers with 8 cores 32G memory, ssd
query like

{
"size": 10,
"query": {
    "bool": {
        "filter": [
            {
                "exists": {
                    "field": "address"
                }
            },
            {
                "exists": {
                    "field": "links"
                }
            }
        ]
    }
}
}

will take about 300 seconds but term query will return quickly , why this happen? is there any difference between term query and exists query ? How can I speed up exists query?

2

you can use the profile API to figure out which part of your search took so much time. Maybe share those results, and then we can go from there.

3

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