Before discussing the ROMs, we must understand the hardware that hosts them. The A5500-HV is powered by the chipset (Quad-core 1.3 GHz Cortex-A7) and typically 1GB of RAM .
Stock software killed this tablet. Custom ROMs resurrected it. If you have an old A5500-HV gathering dust in a drawer, flashing LineageOS 14.1 will give you a surprisingly snappy retro Android tablet. Lenovo A5500-hv Custom Rom