Claim the free +10K Speed first
The official listing says to like the experience and join the Kibrix Runner group for +10K Speed. It does not say whether the bonus is repeatable or automatic.
Run the money loop
Steal a chicken from a nest, outrun its Guard, let the chicken lay eggs, carry those eggs to the Merchant, and sell them. Spend only when Speed or pen space blocks the next repeatable run.
Aim for the first measured routes
A September 8 screenshot field report records 45 recommended Speed for Forest and 5,000 for Lake. Treat these as current route observations, not immutable developer-published requirements.