Download Button Giving Slow Response

[EntityX]

I have a download button on my website to download an application of mine. It works fine but I noticed people are clicking it repeatedly. The response time is a little slow after you click the button. Not that bad for me but maybe it's worse for some. In the button click sub I have the code to get the file and bring up the download window and I also have code to increment a table for download count and get the IP address of the person who clicked the button. If I just have the code necessary to do the download the download window comes up a little bit quicker. Here's my button click sub :

   Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        '                                
        Dim FilePath As String = Server.MapPath("~/FolderForDownload/MyApplication.exe")
        Dim myfile As New System.IO.FileInfo(FilePath)
        If myfile.Exists Then
            Response.AddHeader("Content-Disposition", "attachment; filename=" + myfile.Name)
            Response.AddHeader("Content-Length", myfile.Length.ToString())
            Response.ContentType = "application/octet-stream"
            Response.TransmitFile(myfile.FullName)

        Else
            Exit Sub
        End If
        
        Dim nowip As String

        nowip = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
        If nowip = "" Then
            nowip = Request.ServerVariables("REMOTE_ADDR")
        End If

        Dim MyDownloadsIncremented As New WebServiceForDownloads()
        MyDownloadsIncremented.IncrementDownloadTotal(nowip)
        Response.End()
    End Sub

What I've noticed is that when I had Responcse.End() before my code to get the IP address and increment my table and save the IP Address it would skip performing that code so I moved it below the code. It performs the code but I noticed that after you click the button it takes longer before you see the window pop up that asks if you want to Run or Save.

I tried putting the code to get the IP address and increment my table in a separate sub and then call the sub after Response.End() but it still doesn't perform that code unless I call that sub before Response.End().

I'd like to do everything I'm now doing but get the Do you want to Run or Save window to open sooner. I'm getting a number of people downloading my application from overseas and perhaps when it runs the code to identify the IP address it takes longer. I'm not sure but I see people clicking the download button repeatedly. My table records the exact time to the second when they clicked the download button and to take an example, there are 4 consecutive entries with the same IP address and the times are 3:28 PM for all 4 with the seconds being, 13, 15, 16, and 17.

I put a test download page on my website. When I was running in Visual Studio and using a localhost address I was seeing a big difference in how quickly the window opens after you click the download button if there's download code only versus download code with the other code. When I copied the page to my website and accessed the webpage on the internet there didn't seem to be hardly any difference.


Here's a link to the test page on my website if you want to try it out. You don't have to download anything but you can see how quickly the window opens asking if you want to run or save. There are 2 buttons on the page. One says Download Code Only and the other Download Code and Other Code.

http://www.taylorentertainment.biz/TestDownload.aspx

I just tried it out and I saw a big difference in time between the two but earlier I didn't. Sometimes I think the added code runs faster and other times slower.