Why is my Nissan Navara losing power while driving?

Recently, my Nissan Navara has been struggling to maintain consistent power while driving. It feels like there is a lack of acceleration and the engine seems to be struggling. I've already checked the fuel and air filters, what could be causing this issue?

One possible reason for this could be a faulty mass air flow sensor. This sensor measures the incoming air into the engine and if it is not functioning properly, it can cause a decrease in engine power. I would recommend having it checked and replaced if necessary.

Another potential cause could be a clogged catalytic converter. This can restrict the flow of exhaust gases and cause a decrease in engine power. I would suggest taking it to a mechanic to have it inspected and potentially replaced.