Page faults are not necessarily bad. File I/O that is resolved by the system cache is counted as a page fault. Your processes may just be doing I/O. You could use Process Monitor to see the I/O that the program is doing.
Open task manager and check to see how much available memory you have. This image is from Win10, but should be close to Server16.
If you have sufficient free memory then you don't have a memory problem.