Truck stalls and is under powered

I bought this truck 3-4 years ago and when I bought
it would randomly just die about once a month. This
has gone on over the last few years until the last 6-8
months it started dying more often to the point of
just about every trip, with this being said it always
starts right back up no hesitation.

Now the truck also seems very sluggish and under
powered. For instance taking off sometimes it does
just normal say 0-60 in 12seconds but sometimes it
could be like 0-60 in 20seconds.

Do any of y’all have any clues about this?

This is a 2008 Dodge Ram 4.7l