This scoreline might look good, considering the Afghans were up against a quality bowling lineup but IMO they wasted a good start and they had a chance to touch a 320-ish target.
So, not sure if it's a winning score and it shouldn't be too tough for Pakistan. Unless the spin trio comes to the rescue again.
Pakistan bowled well in the death overs. In the last 10 overs, perhaps Afghanistan managed to collect 74 runs. Rahmanullah Girbaz played an excellent innings of 151 runs. He collected 151 runs off 151 balls. However, it is difficult to win against a team like Pakistan, given a target of 301 runs on a flat pitch.
As Afghanistan's opening pair have batted brilliantly, they should have at least given a target of more than 320/330. 300 runs is not enough to win yet. If the bowlers perform well, a win of 300 runs is possible. But the problem is that Pakistan's batsmen are very experienced. Pakistan's batsmen will take advantage of such a flat pitch very well. Afghanistan's bowlers are talented enough but they are unlikely to do well against Pakistan's batsmen.
Pakistan batsmen are batting very carefully. They collected only 23 runs in 5 overs. They know very well that they will have no problem winning this match if they don't lose quick wickets. This is why they are batting slowly even though the target is big.