Access VB property based on name as string - Fastest Option

I'm developing an ASP.NET MVC web app in VB and I am required to output a set of data to a table format, and to allow the user to configure the order and presence of columns from an available set. The data set is stored as a list of the object type representing the row model.

Currently, I implement this using CallByName. Iterating over an ordered list of property names and outputting the value from the instance of the row model. However, based on testing this seems to be a major bottleneck in the process.

I've seen a recommendation to store delegates to get the property, against the string representation of the property's name. So, I can presumably do something like this:

Public Delegate Function GetColumn(ByRef RowObj As RowModel) As String

Dim GetPropOne As GetColumn = Function(ByRef RowObj As RowModel) RowObj.Prop1.ToString()

Dim accessors As New Hashtable()

accessors.Add("Prop1", GetPropOne)

Then, loop through and do something like this:

Dim acc As GetColumn = accessors(ColumnName)

Dim val As String = acc.Invoke(currentRow)

It looks faster, but it also looks like more maintenance. If this is indeed faster, is there a way I can dynamically build something like this? I'm thinking:

Public Delegate Function GetObjectProperty(Instance As Object) As Object

For Each prop In GetType(RowModel).GetProperties()
    Dim acc As GetObjectProperty = AddressOf prop.GetValue
    columns.Add(prop.Name, acc)
Next

Dim getColVal As GetObjectProperty = columns(ColumnName)

Dim val As String = getColVal.Invoke(currentRow).ToString()

Open to suggestions for different approaches.