Are they road or race versions? I run race and although it was a shock at first it didnt take me long to get used to (daily car)

If they really bother you tho, you can either go for the road version (if race fitted), else back to standard rubber mounts - readily available aftermarket from motorfactors etc
Just make sure you get the right engine mount as these did vary slightly across the years. Gearbox mounts are the same throughout mk4 lifespan.