Charging problem in Xperia Z5 Premium dual

[priom]

Since I bought my sony xperia z5 premium I hadn't any problem on fast charging for 1st 6 months. It has charged 60% in 30 minutes , 90% in 50 minutes and full charged in 1 hour and 10 minutes. But nowadays last 1 month it is charging too slowly and not working fast charging perfectly. Last 1 month my phone taking 2.30 - 3 hours to be full charged.
I m worried and is there any solutions to get back fast charging like previous?
Help me guys.

[Lord_viridis]

Close down background apps and let it settle before connecting the charger

[priom]

I have enabled stamina mode maximum time so it has automatically closed down background apps. Any other tips bro?

[akbar2]

I have enabled stamina mode but 3 battery is empty charge the phone after 60%prcand not charge switch off 📴 then charge is good work

[andysoft83_gmai]

Try to chage the USB cable from the charger, some people experienced such behavior with broken USB cables .

[Salim36]

Same problem doing with me,
My phone is Xperia z5 premium dual.
😔😔😔
Please solve the problem.