Just VWCE or VWCE and SP500 ? Advice needed

Hi everyone,

I am thinking about investing in VWCE, but looking at this

https://curvo.eu/backtest/compare?portfolios=NoIgag6gwgoiA0xQEkYAY0CEDSBWTAigCoAcaCAjALo1A%2C%20NoIgygZACgBArABgSANMUBJAokgQgZgA1CAlKBATlQEYBdeoA

It’s compraing VWCE and SP500, and SP500 seems to earn more money (more volatile, less diversified).

My question is, should I put all my money in VWCE, or half of the money in VWCE and half in SP500 ? Will that earn me more money, or not necessarily ?

Thank you