Waste of money. JR may work when there has been a decision made and you have gone through other levels of appeals or reconsideration.
You need to wait 6 months and after you can probably contact your MP or write a complaint. if you encountered loss due to delay after 6 months and you have the resources , you can decide to pursue legal claims for losses from HO.
So many people wait more than the stipulated timeframe, it all depends on the complexity of the case or number of applications they have and so many other reasons. Be patient and hopefully, you will be writing success story
than funding your lawyers pockets.