Is 71B slow?

Has anyone used this and noticed a slow start to the fermentation?

I used it for the first time a month or so ago and when I did it took forever for it to start creating noticeable bubbling. I tried re-pinching multiple times to get it to go.

I’m using it again and it’s been a week without any airlock bubbling. However, I do see the yeast visibly growing around the top of the glass and on the bottom.

Any tips for this yeast?