Sayyidah Aishah (may Allah be pleased with her) says that the Messenger of Allah (peace and blessings be upon him) did not speak continuously and rapidly the way you do; rather, there were pauses in his (peace and blessings be upon him) speech and it was so clear that the listener would memorise it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5757
Urwah (may Allah have mercy on him) narrates from Aishah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) did not speak continuously the way you do; rather, whenever the Prophet (peace and blessings be upon him) spoke, his speech was so clear that the listener would memorise it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5758
Waki' bin al-Jarrah and Abu Usamah also narrated it from al-Thawri with this same chain. Abu al-Qasim Sulayman bin Ahmad al-Lakhmi (al-Tabarani) said: Usamah's narration from al-Qasim and from al-Zuhri are both sahih (authentic).
Al-Shaykh (al-Bayhaqi) said: A hadith with this meaning is established from Yunus bin Yazid and others, from al-Zuhri, from Urwah, from Aishah; it has already passed in Kitab al-Madkhal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5759