We export projects to local and network-drives with no difference in speed. SDD is a little bit faster then a normal harddisc.
If there is no plugin rendering audio, 8 tracks with 2 minutes should be about 5 to 10 seconds.
Do you export to an USB-Stick or a very slow NAS-Drive??
Do you export to the same disc as the audiodata (project) is saved - and your harddisc is set as an IDE-drive instead of SATA ??? That would be very slow.