To play MARVEL Strike Force, you need a device that meets the minimum specifications:

iOS -

iOS 13 or later
2GB of memory
64 bit device
iPhone 6s or newer

Android -

Android 7 or later
Greater than 1.5 GB of memory 
OpenGLES 3.0 support

For an optimal gaming experience, make sure that you are connected to a reliable network with a strong Wi-Fi or cellular signal.