I have Vontar X96 S905X 2G/16G.
In kzzaq’s 8.2.3.1 the processor temperature was 69 ° C.
With CoreELEC up to 8.90.3, temperatures ranged from 73 to 80 ° C, resulting in rare image outages.
At the latest 8.90.4, the temperature is 63 ° C and all image loss issues disappeared.
Those Temp readings are high even for Kszaq’s old builds. Old LE builds usually around low 50 to mid 50c. You have an issue. Hope it’s not some addon running in the background ?
Problem will be in poor quality product - bad cooling. It’s been a year. Except for occasional image outages (once per hour), everything works normally.