Snappy zero to hero

"Here we infer that LUCA lived ~4.2 Ga (4.09–4.33 Ga) through divergence time analysis of pre-LUCA gene duplicates, calibrated using microbial fossils and isotope records under a new cross-bracing implementation. Phylogenetic reconciliation suggests that LUCA had a genome of at least 2.5 Mb (2.49–2.99 Mb), encoding around 2,600 proteins, comparable to modern prokaryotes."
https://www.nature.com/articles/s41559-024-02461-1
Early earth able to support life 4.3-4.4 Ga?
This would give a time frame for the evolution from the origin of life to LUCA of a few hundred million years at most, i.e. zero to 2,500,000 base pairs encoding around 2,600 proteins.
Not enough time?
Not the rate predicted by evolutionary theory?
Or all good?