There is some interesting top related stuff in there, you have to experiment and see if anything actually works. There are also suppressed options relating to tdp, but those options can be changed without modding the whole bios in UEFI shell.
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0x70C64 One Of: Configurable TDP Lock, VarStoreInfo (VarOffset/VarName): 0x40, VarStore: 0x3, QuestionId: 0x157, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 07 02 08 02 57 01 03 00 40 00 10 10 00 01 00} 0x70C75 One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01} 0x70C7C One Of Option: Disabled, Value (8 bit): 0x0 (default) {09 07 04 00 30 00 00} 0x70C83 End One Of {29 02}
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0x70C97 One Of: CTDP BIOS control, VarStoreInfo (VarOffset/VarName): 0x41, VarStore: 0x3, QuestionId: 0x158, Size: 1, Min: 0x0, Max 0x1, Step: 0x0 {05 91 09 02 0A 02 58 01 03 00 41 00 10 10 00 01 00} 0x70CA8 One Of Option: Enabled, Value (8 bit): 0x1 {09 07 03 00 00 00 01} 0x70CAF One Of Option: Disabled, Value (8 bit): 0x0 (default) {09 07 04 00 30 00 00} 0x70CB6 End One Of {29 02}
I couldn't find where the P0/P1 states are configured, it may not be accessible. On some cpu you can change P0/P1 settings with Intel XTU you can try and see what you can configure for your cpu in there.