Post-Breakup Sex with Stranger

I recently ended a serious relationship and decided to see what it was like on my own. One night at a bar, I met someone who seemed interested in the same thing: no strings attached sex. We went back to their place after a few drinks and got straight into action. The moment we stepped inside, I could feel the tension building between us. There wasn't much foreplay; we both just dove right in, needing to connect physically. When we finally touched skin on skin for the first time, it was intense but hollow, devoid of the emotional depth that usually accompanies physical intimacy with a partner. I explored every inch of their body and reveled in their reciprocation, yet there was an underlying void. We came quickly, almost urgently, as if we were racing against some unseen deadline. Afterwards, I felt oddly disconnected from myself, like the act hadn't fully engaged my senses or emotions, just my desires. Is it normal to feel this way after a breakup? Am I not ready for casual encounters yet? What should I do next time?