I'm using OpenLayers and I'm calling an Untiled 3rd party WMS service. I've run some tests to test performance\time differences between the following:
- OpenLayers WMS call to the service (mostly slowest)
- WMS URL directly into browser (sometimes slowest)
- Calling 3rd party WMS service directly (quickest)
I'm using the exact same image dimensions and bounding boxes each time for all calls. I'm seeing differences of 1 to 2 seconds between calls 1 and 3. I'm calling the WMS layer correctly using OpenLayers.Layer.WMS... I've done it before but the time differnce is odd.
Can anyone enlighten me as to why there would be differences?