❔ Trying to speed up CSV import times

    public IDictionary<string, IList<Array>> Import()
    {
        using var streamReader = new StreamReader(Filepath);

        var Config = new CsvConfiguration(CultureInfo.InvariantCulture)
        {
            Delimiter = ",",
            IgnoreBlankLines = false,
            TrimOptions = TrimOptions.Trim,
            HasHeaderRecord = checkHeader(streamReader) // bool that just checks if the first line is a header 
            Mode = CsvMode.NoEscape,
        };

        using var dataReader = new dataReader(streamReader, Config);
        var getLines = dataReader.GetRecords<DataObj>(); // all the data is kept as a string, exists for easier assigning/indexing of the columns

        int lineCounter = 0;
        foreach (var line in getLines)
        {
            lineCount++; 
            
            var goodData = CheckData.Validate(line, lineCount); // bunch of if statements just ensuring the data fits within parameters, returns the good data in an array or null, otherwise 

            if (validatedClaim != null)
            {
                AddDataToDict(goodData.Factor1, goodDataArray!); // Adds good data to a dictionary, each value is a list, where the arrays returned from check data are appended
            }
        }

        return _dataDict;
    }