Slow bubbling port kit

[Cat]

I just started an RJS Black Forest port kit (last year's, but was told it would be ok w/new yeast). I followed directions - gently stirred in bentonite, then sprinkled yeast on top w/o rehydrating. The picture showed a bucket w/ a good deal of headspace, so I put the 3 gallon kit into a 5 gal bucket. It took 24 hours to see positive air pressure in the airlock, and now, almost 48 hours in, its bubbling once every 15 seconds.

The juice looked to be the normal color, and I’m within the recommended temps.
I don’t remember any wine or port I’ve made going this slow for initial fermentation, and I feel like an anxious parent.

Is this normal for having so much extra space, and should I move it to a 3 gal container to improve fermentation?

Should I try rehydrating some more of the same yeast and adding it?

Or should I just leave it alone?

Thanks

 

[salcoco]

have patience it is working great. I would cover with a towel rather than a top and airlock. also stir at least twice daily.

 

[DriftlessDoc]

For what its worth, I just finished a similar port and fermentation was not a raging inferno of bubbles like other kits I've done. Turned out great.