Yes, Jesus did perform miracles; yet, what he did while on earth was relatively limited compared with what he would have been able to accomplish in heaven.
لِنَتَأَمَّلْ عَلَى سَبِيلِ ٱلْمِثَالِ فِي شَرِيعَةِ ٱلسَّبْتِ .‏