However, the H6 was fabricated on a . Compared to modern 12nm or 7nm chips, 28nm leaks voltage. When you push the CPU past 1.5GHz, leakage current translates directly into heat.
) while keeping it from running too hot, the community generally recommends switching to a "slim" or "debloated" custom ROM. Recommended Custom ROMs Alice UX / Slimbox:
Have you tried the new 6.8 kernel on your H6? Let us know your temps in the comments below.