Well i suffer daily after witnessing miserability of my fellow countrymen.
than you have not suffered.
Things don't change simply due to a leadership change, and they certainly don't change over night.
A price must be paid for a brighter future, it is not free. Things will become worse, before the become better. The dictators had high growth rates because of US money and support flooding Pakistan, NOT because they were some sorts of economic geniuses (they were not). Sharif had high growth because he borrowed tens of billions from foreign and domestic banks to fund vanity projects that have little economic impact or growth potential.
Imran Khan is having to fix these issues, so of course the economy has slowed down.
Like I said, a price must be paid for past incompetence, and Pakistan is paying it right now. Imran Khan's job is to install reforms, and make sure Pakistan remains economically stable, until the price is paid in full, and the budget is balanced. If Pakistan doesn't enact reforms now, it's future is going to darken.