The phrase "underpowered hardware" refers to a device or computer that doesn't have enough strength or capability to perform tasks efficiently or smoothly. Full definition
But this... I admire Onyx for being a pioneer, but I can't understand why they decided to combine such underpowered hardware with obsolete software? (goodereader.com)
These companies are no stranger to making the best of underpowered hardware which they have been doing since Nintendo launched the Wii. (engagedfamilygaming.com)
The Wii U may traditionally be thought of as underpowered hardware compared to PlayStation 4 and Xbox One, but you wouldn't know it when looking at Xenoblade Chronicles X. (polygon.com)