Although when using APS, you can't disable the compilation (it would be rather odd to request fast simulation algorithms only to purposefully slow down part of the simulation!).
I have seen an issue at one customer where /usr/bin/mpstat was not installed - this allows it to recognize there are multiple CPUs and do the compilation in parallel if there are multiple things needing compiling - and if missing it can only do them sequentially.
Another possibility to solve your problem is to use CDS_AHDLCMI_SIMDB_DIR to point to a common directory. See "spectre -h veriloga" for info on this variable.
There is a CCR to address the issue with AMS - so you might want to contact customer support.