Here in Missouri, at this time of year, I have noticed deer are moving well between 10am and 2pm. Therefore, I would suggest changing the times you hunt. Maybe starting early and staying until noon or 1pm, then break and go back out around 2 or 3pm. That might help ya man, good luck.
...and on that day when my strength is failing, the end draws near and my times has come, still my soul will sing Your praise unending, ten thousand years and then forevermore!