There are much better alternatives for CPU-mining.

I'd recommend checking for coins using the Argon2d-algorithm like Credits (CRDS), Dynamic (DYN) or Nimiq (NIM).
According to my experience I'd say Nimiq is the most profitable "CPU-only coin" currently (just make sure to use the external miner and not the browser-mining).

Credits (CRDS)
Website: https://crds.co/
Pool: https://beastpool.com/
Miner: https://github.com/BeastPool/cpuminer-argon2d/releases/tag/v3.8.3.3
Discord: https://discordapp.com/invite/Hq7dKhh

Dynamic (DYN)
Website: https://duality.solutions/
Pool: https://beastpool.com/
Miner: https://github.com/BeastPool/cpuminer-argon2d/releases/tag/v3.8.3.3
Discord: https://discordapp.com/invite/NCCPaJd

Nimiq (NIM) ★
Website: https://nimiq.com/
Pool (list): https://www.reddit.com/r/Nimiq/comments/8gb8bi/a_list_of_all_nimiq_pools_available_right_now/
Miner: https://github.com/nimiq-network/core  (Official - for pool-mining check the respective pool's instructions)
Discord: https://discordapp.com/invite/cMHemg8
Reddit: https://www.reddit.com/r/Nimiq/
Note: Supported by Ledger Nano S, Hashrate seems to be higher on Linux (you can use a Windows Subsystem for Linux (WSL) but make sure to read this if you're using a WSL: https://github.com/nimiq-network/core/issues/387)

There may be more profitable alternatives I haven't tried yet.