Before doing any gaming, open either Task Manager or Resource Monitor. Use both tojols but only one at a time.
Watch what the system is doing and/or does - first without gaming and hopefully with no overheating or high temperatures.
Then, leave the too window open to one side or the other and play Valorant. Again watch what the system is doing and for any changes in resources, apps, etc. that cause the temperatures to increase.
Consider that the laptop may be running other apps etc. in the background and that adding the load of playing Valorant may be "too much".
Look in Task Manager > Startup for apps, tools, utilities, etc. that may be being launched at startup: for example - backups, AV scans, updates. some utility...