No. It makes you faster. You can prove it by looking at the lines of code.
Source: Gary Tan, who can write more code than Jeff Dean and John Carmack.
If you want to go really fast, you put a Ralph Wiggum dungeon. It's where you orchestrate a team of Ralph Wiggum loops together using subagents to win the economic Darwin Award which companies are handing out for who can burn the most tokens.