I think you never looked those coins in the coinmarketcap. You are just repeating what is all over the internet about ethereum bad performance or whatever...
I literally looked myself on Coingecko website and all possible charts, it's the same thing on CoinMarketCap and everywhere else, except maybe in your head 
You just trying to find a range where XMR is better than ETH and you did it! The only range where it is better lol
Any other range that you look it will be like waht I said:+ 600-1000% for ETH and -40% XMR.
XMR is stagnant since 2017-2018 cycle.
Unless you are short term trader, you should really click any other button (5Y, MAX, etc) in your images to see a very different picture.