Hadhrat Thanavi (may Allah have mercy on him) said;

Allah Ta’ala and the Holy Prophet ﷺ do not want delaying good deeds, rather they want people hurrying to perform good deeds. For example, it has been said in the Holy Qur’an; “…Strive, then, to excel each other in good deeds…” (2:148) and “…and hasten towards good deeds…” (3:114). Similarly, when it says in the Hadith that ‘thawab’ (reward for good deeds) are multiplied in Ramadan, it implies that when we are in Ramadan, we should hasten to perform good deeds before it finishes. Do not delay it thinking you will perform these good deeds after Ramadan. It is because the reward for performing the same good deeds is much higher if performed in Ramadan. However, it does not mean that we should postpone performing good deeds waiting for Ramadan. For example, if the Zakat year finishes on 28 Sha’ban, then not paying Zakat during Sha’ban and to keep waiting till Ramadan in the hope of getting greater reward is not correct.