Not every issue is heat-related. Other things can affect performance:

• Battery level: A low battery can make the draw feel weaker. If you've been using it all day, that might be the cause.
• Device age: Disposables have a limited number of puffs. As it nears the end, flavor and vapor drop off naturally.
• Your usage pattern: If you take long, frequent draws, the coil can get hotter than normal. Short, steady puffs are gentler on the device.
• Humidity: Hot and humid air can affect how the vapor feels, but that's more about the environment than the device.

Don't blame heat for everything. Check the basics first.