Let's try to troubleshoot the issue.
Please download logging tool- process monitor
(free windows application).
Open it and set up:
1 You need only File System Activity
2 Enable Autoscroll
3. Once you see list of programs scrolling look for 3dsmax.exe
disable autoscroll, find 3dsmax.exe, rightclick it and use Include '3dsmax.exe'
Now only 3dsmax activity will be visible in the log.
Try doing what is causing the slowdown for You and watch the log.
Once 3dsmax freezes do a screenshot (where "Time" and "Path" are fully visible) of the Process Monitor and send
it to us.
Thanks in advance for any further comments on this issue you can share with us / our user community (in case some user(s) will run into similar troubles).