For about a week after installing 7.5.0 Build 7514  we had no issues, but we have noticed increasingly slow performance.  Screens will take sometimes up to five minutes to load, even with  a system reboot, and daily reboots are required just to get something resembling a workable solution.   The mail fetcher also intermittently malfunctions, again requiring a reboot

Is there a resolution for these issues?  Frankly, we're more than a bit disappointed that a "hotfix" could do this much damage.