"hard going" meaning in English

{
  "head_templates": [
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      "args": {
        "1": "en",
        "2": "phrase"
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      "expansion": "hard going",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "_dis": "64 36",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
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      "examples": [
        {
          "ref": "1960 January, “New reading on railways”, in Trains Illustrated, page 26",
          "text": "THE CONCISE ENCYCLOPAEDIA OF WORLD RAILWAY LOCOMOTIVES. Edited by P. Ransome-Wallis. Hutchinson. 50s. [...] Its only noticeable defect is inconsistency in presentation and loose editing, which make its use harder going for the amateur than need be.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Difficult to understand and enjoy."
      ],
      "id": "en-hard_going-en-phrase-or6E6kfC",
      "qualifier": "especially reading and study material",
      "raw_glosses": [
        "(especially reading and study material) Difficult to understand and enjoy."
      ]
    },
    {
      "glosses": [
        "Difficult and requiring a lot of effort."
      ],
      "id": "en-hard_going-en-phrase-KUWoakpF",
      "raw_glosses": [
        "(of a task) Difficult and requiring a lot of effort."
      ],
      "raw_tags": [
        "of a task"
      ]
    }
  ],
  "word": "hard going"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English phrases"
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  "head_templates": [
    {
      "args": {
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        "2": "phrase"
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      "expansion": "hard going",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1960 January, “New reading on railways”, in Trains Illustrated, page 26",
          "text": "THE CONCISE ENCYCLOPAEDIA OF WORLD RAILWAY LOCOMOTIVES. Edited by P. Ransome-Wallis. Hutchinson. 50s. [...] Its only noticeable defect is inconsistency in presentation and loose editing, which make its use harder going for the amateur than need be.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Difficult to understand and enjoy."
      ],
      "qualifier": "especially reading and study material",
      "raw_glosses": [
        "(especially reading and study material) Difficult to understand and enjoy."
      ]
    },
    {
      "glosses": [
        "Difficult and requiring a lot of effort."
      ],
      "raw_glosses": [
        "(of a task) Difficult and requiring a lot of effort."
      ],
      "raw_tags": [
        "of a task"
      ]
    }
  ],
  "word": "hard going"
}