throttling

I found out that device after few minutes throttles down to 60% original device performance. That is performace of galaxy s6 :( Other phones with sd835 do not do that. I went back to miui10 oreo, sutuation is better but still far away from oneplus, nokia... Throttling at 50c is too low. Anybody...

The title says it. (Asking for device Polaris) I have some heating issues with Global Stable and after 15 days I will switch to eu, so just informative is my question. Can you also tell me the scrores you get from Antutu and Geekbench 4 ?