Pulmonary function test interpretation?

Hi I had a pulmonary function test at a hospital and was wondering what the following statements mean. I'll post the "Findings" and "Impression"

Findings:

FEV1, FVC, FEV1/FVC ratio are normal. FEF 25/75 is moderately decreased. Slow vital capacity is normal. There is no significant improvement in FEV1 or FVC following bronchodilator.

Impression:

1. Minimal obstructive airways disease characterized by moderate small airways dysfunction. FEV1 and FVC are both normal.
2. No significant broncho-reversibility is present.
3. Normal slow vital capacity.

I get that most of it looks normal but what's that about "disease"? It doesn't make sense to me. If any doctor could answer this for me I would appreciate it. Thanks.