Make strings easier to press

(Hi, I'm new to this sub!) After trying my brother's violin I realized the strings on his were easier to press than on mine.

For a long time I have struggled with making my high notes sound clean and I realized it's because the strings on my violin are a lot harder to press (especially higher up on the fingerboard) and it would take lots of finger strength. I would not press the string right up to the fingerboard because it was a strain on my finger muscles, no wonder the sound never came clean!

However those high notes are easily achieved on my brother's violin, almost effortless. I was wondering if there is a way to change my violin to make it more like his? I'm guessing it has something to do with the bridge height maybe? Can a good luthier fix this?