Yes this iz true, but, he had a gross aversion to speed for the sake of showing off. He hated that.
Good for Mr. Chopin! All piano teachers would kill their students if they sped up to show off. Learned this early in my "career"
A lot of his works are now being played at inappropriate speed and volume such as Etudes Op.10 No.1, No.5, No.6, Sonate Op.35 mvt.1, to name a few.