Incremental Refresh for Dataflow calling Source API Multiple Times

let

    Url = http://environment.data.gov.uk/hydrology/id/measures/5adcd239-4420-40b5-abe2-69082f9e24ff-rainfall-t-900-mm-qualified/readings.json?mineq-date=1920-01-01&max-date=2050-01-01&_limit=2000000,

    Source = Json.Document(Web.Contents(Url)),

    Navigation = Source[items],

    #"Converted to table" = Table.FromList(Navigation, Splitter.SplitByNothing(), null, null, ExtraValues.Error),

    #"Expanded Columns" = Table.ExpandRecordColumn(#"Converted to table", "Column1", {"dateTime", "date", "value", "valid", "invalid", "missing", "completeness", "quality"}, {"DateTime", "Date", "Value", "valid", "invalid", "missing", "completeness", "quality"}),

    #"Changed column type" = Table.TransformColumnTypes(#"Expanded Columns", {{"DateTime", type datetime}, {"Date", type date}, {"Value", type number}, {"valid", Int64.Type}, {"invalid", Int64.Type}, {"missing", Int64.Type}, {"completeness", type text}, {"quality", type text}}),

    #"Inserted time" = Table.AddColumn(#"Changed column type", "Time", each DateTime.Time([DateTime]), type nullable time),

    #"Added TID" =

    Table.AddColumn(

    #"Inserted time",

    "Time_ID",

    each

    Text.PadStart(

    Text.From((

    Number.Round(

    Number.From(

    Time.From(Number.Round(Number.From(Time.From([DateTime]))*(24*60/15))/(24*60/15)) //Create rounded 15 min time interval (96 divisions for TimeslotID)

    )

    *96)

    +1))

    ,2,"0")),

    #"Added TSID" = Table.AddColumn(#"Added TID", "Timeslot_ID", each Text.Combine({

    Text.From(Date.Year([DateTime])),

    Text.PadStart(Text.From(Date.Month([DateTime])),2,"0"),

    Text.PadStart(Text.From(Date.Day([DateTime])),2,"0"),

    Text.From([Time_ID])

    })),

    #"Change TimeID type" = Table.TransformColumnTypes(#"Added TSID", {{"Timeslot_ID", Int64.Type}, {"Time_ID", Int64.Type}}),

    #"Removed columns" = Table.RemoveColumns(#"Change TimeID type", {"Time_ID"}),

    #"Reordered columns" = Table.ReorderColumns(#"Removed columns", {"DateTime", "Date", "Time", "Timeslot_ID", "Value", "valid", "invalid", "missing", "completeness", "quality"}),

    #"RF_Parkend-incremental_refresh" = Table.SelectRows(#"Reordered columns", each DateTime.From([DateTime]) >= RangeStart and DateTime.From([DateTime]) < RangeEnd),

    #"RF_Parkend-4461746554696D65-autogenerated_for_incremental_refresh" = Table.SelectRows(#"RF_Parkend-incremental_refresh", each DateTime.From([DateTime]) >= RangeStart and DateTime.From([DateTime]) < RangeEnd)

in

    #"RF_Parkend-4461746554696D65-autogenerated_for_incremental_refresh"