What are factors that could be preventing my car from not achieving top speed?

The car is a 2003 Honda Element 4 speed auto awd with almost 140,000 miles. I have a check engine light and it turns out be that I have a faulty upstream 02 sensor. Anyways onto another topic, When I was on the highway doing a short top speed test to see what my truck could do, it would get up to 90 mph but once it hits that speed it SLOWLY climbs up the speedometer until 95-100 mph then it wouldn't go faster? M. The brick shaped truck is pretty stable at 100 mph but I'm sure that it could go past 100 mph because after that the engine keeps redlining but it doesn't get anywhere. What could it be?

Your incessant Honda Element trolling. Get some help with your amnesia.

Clogged cat converter

Your vehicle isn't running the proper fuel/air mixture due to your lack of maintenance. Fix the &$^@ O2 sensor before you fry your cat and motor running wide open.

You are the factor preventing it by beating and neglecting your vehicle.

How about finally admitting that a big box on wheels has a lot of wind resistance and is not a race car jojo?!

It's the Mark DeSilva factor that is holding you back.

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