Strong incoming signal--weak internet

I'd say that's generally not bad (although I usually see higher download than upload on wi-fi - like the reverse of the numbers you presented)

But there are many variables: 2.4, 5Ghz or 6GHz, distance, congestion, construction, devices.  On the latter, I get very different results from various: Laptops, tablets, phones, streaming devices etc. and often just moving them a few feet makes a difference.