Intel Questasim is very slow, e.g. cd ..

Finally I found the reason for the slow behaviour.

If I remove the intel/altera specific libraries from the default modelsim.ini, the questasim is fast again.

Yet I didn't check, if there is a specific library or if the amount of libraries makes questasim slow. Since my code is platform independent, I removed the altera libraries from the modelsim.ini.

Works for me and hopefully helps other FPGA developers to find a solution for this issue.

Thanks for trying to help.