Plodder and Fagger

noun

• Someone who walks in a laborious heavy-footed manner.
  • synonyms: trudger, slogger
• Someone who works slowly and monotonously for long hours.
  • synonyms: slogger
• Someone who moves slowly.
  • usage: "in England they call a slowpoke a slowcoach"
  • synonyms: slowpoke, stick-in-the-mud, slowcoach