How often should one fast and how quickly should do the khatm of the Quran

He asked the Prophet ﷺ: “In how many days should I ˹complete˺ the Quran?” He mentioned the hadith, saying: until he said: “In seven ˹days˺; he does not understand who recites it in less than three.” He said: “How should I fast?” He said: “Fast three days of every month, one day out of every ten days, and the reward of nine days will be recorded for you.” He said: “I am stronger than that.” He said: “Then fast two days out of every ten, and the reward of eight days will be recorded for you,” until it reached five days.

أَنَّهُ سَأَلَ النَّبِيَّ ﷺ: فِي كَمْ أَقْرَأُ الْقُرْآنَ؟ فَذَكَرَ الْحَدِيثَ، قَالَ: حَتَّى قَالَ: «فِي سَبْعٍ، لَا يَفْقَهُ مَنْ قَرَأَهُ فِي أَقَلَّ مِنْ ثَلَاثٍ». وَقَالَ: كَيْفَ أَصُومُ؟ قَالَ: «صُمْ مِنْ كُلِّ شَهْرٍ ثَلَاثَةَ أَيَّامٍ، مِنْ كُلِّ عَشَرَةِ أَيَّامٍ يَوْمًا، وَيُكْتَبُ لَكَ أَجْرُ تِسْعَةِ أَيَّامٍ». قَالَ: إِنِّي أَقْوَى مِنْ ذَلِكَ. قَالَ: «صُمْ مِنْ كُلِّ عَشَرَةٍ يَوْمَيْنِ، وَيُكْتَبُ لَكَ أَجْرُ ثَمَانِيَةِ أَيَّامٍ»، حَتَّى بَلَغَ خَمْسَةَ أَيَّامٍ.