But it gives 2A current but my iPhone requires only 1A there won’t be any problems ri
Your iPhone doesn't actually require any particular current input. It can handle anything that provides from a standard 500mA USB port up to 2100 mA. Any power adapter or power bank is ideally just a voltage regulated power supply. One may be current limited, like the 5W/1000mA adapter that comes with iPhones. In any case, your iPhone won't accept more than its regulated maximum current in, which should be 2100 mA. You could have a supply that could theoretically provide 10,000 mA, but that doesn't really matter.
If you use a more powerful supply (up to that maximum 2100mA) then the charging should be faster. The maximum charging rate (controlled by the phone) happens from 0% until maybe 80%, but then it will slow down to protect the battery from overheating above this. Some people prefer to use a 1000 mA power adapter whenever possible because it theoretically reduces heat generated while charging, and thus a theoretical improvement in longevity. However, it's safe to do so. I charge with a 12W iPad power supply or my Mac at home, and with a 2.1A adapter in my car. It theoretically is affecting the longevity of my battery, but I consider it a fair tradeoff for the convenience of faster charging.