i have a workaround for this problem.
for me it works if i run MindManager2017 as administrator.
I set this in compatibility settings of the MindManager2017-link on my desktop
So word and excel start in view seconds.
i also disabled the compatibility assistant from windows 10 because after closing MindManager i get a message from the assistant.
if you use mapped network drives you have to add a value in the registry
add a new DWORD (32 Bit) named EnableLinkedConnections and set value to 1
reboot and now use your network-drives as administrator
i hope i can help somebody.