As an atheist I admit that a higher percentage of Christians than atheists help other people.
The reason for this has nothing to do with god or love, but has a lot to do with hell.
A caring person is someone that is bothered by the suffering and misfortunes of others and is willing to share some of their time and resources to help others. Caring people come from all walks of life, all races, all religions, all sexual orientations, and all genders. A religious person, especially a Christian, is no more likely to be caring than a Muslim, Buddhist, or atheist. Yet, more Christians act to help others than atheists. This is because many Christians that are not particularly caring of others, are concerned about their own souls and fear going to hell and they act to help others because some Christian teachings have led them to believe they can save themselves from hell by helping others.
So, yes, you will find a higher percentage of Christians doing charitable work, but not because or any moral superiority of the religion, it is because people are selfishly trying to save their own souls. I am not implying that all Christians that help others are selfish, some are, but many Christians that help others are caring people, like myself, that care about others regardless of our religion or lack thereof.
In the U.S., many Christians, especially the Christians that are right-wing Republicans, have become less caring of others. Selfishness and greed are two of the greatest virtues of these political Christians. Many true Christians sold their souls to the Republicans years ago and these Christians no longer help others, but instead deny help to others and enjoy the suffering of others because it helps them to feel better about their own lot in life.