Oil Pressure Guage

[ace17]

i have researched some already posted threads and did not get my exact question answered...

I have a 93 964 C4. 97k on it, factory motor all stock.

Recently I noticed when I start it the Oil Pressure Gauge reads real low. Like sub 1 almost 0. When i tap the gas the gauge will spike up to 5 and then drop down to a normal reading and acted as normal... Oil is clean and at normal level....

It seams like its not getting the initial reading? can i drive the car if i pay close attention to the gauge until i get figured out? thoughts? thanks.