I would use the eval board as is, unless you get some erroneous results.
It may take some experimentation. Take C1, C4, C5, C6 to 100nF and put the same on C2 and C8. If you are still getting erroneous results, then make the caps even bigger, say 1uF. But I think you may be able to get away with the stock component values being that you are at 1MHz.