mining pools – Higher Hashrate VS Incorrect Shares

I recently started mining eth on my 5700 bios flashed to XT, mining on Nanopool. Getting around 48MH/s but i saw a method by Red Panda Mining which can increase my MH/s by around 10 giving me 60MH/s but a high ratio of incorrect shares using a config edit on Phoenix Miner. Im wondering if this is worth the increase in hashrate but ultimately still leads me to incorrect shares. My incorrect share rate is 2:1 using this edit. Thoughts?