Fix the economy first, after Indians has already had hundreds of their four generations of Tejas Mark 1, Tejas Mark 2, and TBF, then Pakistan can start thinking about inducting 5 generation fighters.
Let them put their resources to develop and manufacture those 4 gen fighters until the numbers are in hundreds while during that period Pakistan should focus on fixing the economy
Their focus on Tejas Mark1, Tejas Mark2, and TBF is a bless for Pakistan, better you use this period to build the economy as Pakistan have already had quite many four gen fighters.