I have noticed that my '99 PreRunner recently has a had a a bit of a struggle when the gas is really applied.
Decided to order a Toyota gas filter and change out. Glad I did. The photo you see is a result of the old filter being poured down from the out going (engine) side.
Nasty color and sediment too. (white rag placed behind the container for comparison.)
So if it's been awhile since your gas filter change, might want to consider it!