I heard the Messenger of Allah ﷺ say: When the iqamah is pronounced for prayer, do not come to it running, but come walking(slowly). You should observe tranquility. The part of the prayer you get(along with the imam) offer it, and the part you miss complete it (afterward).
سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ إِذَا أُقِيمَتِ الصَّلاَةُ فَلاَ تَأْتُوهَا تَسْعَوْنَ وَأْتُوهَا تَمْشُونَ وَعَلَيْكُمُ السَّكِينَةُ فَمَا أَدْرَكْتُمْ فَصَلُّوا وَمَا فَاتَكُمْ فَأَتِمُّوا