Hey MichaIng. Yeah, having only two options for CPU Governor is lame. From what I have read in several Forums there are mixed experiences with the pstate Scaling driver.
An option to switch between Scaling Drivers would be awesome. 
Have a nice Weekend!
Following the wanted output.
root@DietPi:~# for i in /sys/devices/system/cpu/intel_pstate/*; do echo “$i: $(<$i)”; done
/sys/devices/system/cpu/intel_pstate/max_perf_pct: 100
/sys/devices/system/cpu/intel_pstate/min_perf_pct: 32
/sys/devices/system/cpu/intel_pstate/no_turbo: 0
/sys/devices/system/cpu/intel_pstate/num_pstates: 18
/sys/devices/system/cpu/intel_pstate/status: active
/sys/devices/system/cpu/intel_pstate/turbo_pct: 56
root@DietPi:~# lsmod
Module Size Used by
binfmt_misc 20480 1
tda18250 20480 1
mn88472 20480 1
xt_nat 16384 15
xt_tcpudp 16384 29
veth 20480 0
xt_conntrack 16384 4
ipt_MASQUERADE 16384 11
nf_conntrack_netlink 49152 0
xfrm_user 40960 1
xfrm_algo 16384 1 xfrm_user
nft_counter 16384 72
xt_addrtype 16384 2
nft_compat 20480 61
nft_chain_nat_ipv4 16384 12
nf_nat_ipv4 16384 2 ipt_MASQUERADE,nft_chain_nat_ipv4
nf_nat 36864 2 nf_nat_ipv4,xt_nat
nf_conntrack 172032 6 xt_conntrack,nf_nat,ipt_MASQUERADE,nf_nat_ipv4,xt_nat,nf_conntrack_netlink
nf_defrag_ipv6 20480 1 nf_conntrack
nf_defrag_ipv4 16384 1 nf_conntrack
libcrc32c 16384 2 nf_conntrack,nf_nat
nf_tables 143360 351 nft_compat,nft_chain_nat_ipv4,nft_counter
nfnetlink 16384 4 nft_compat,nf_conntrack_netlink,nf_tables
br_netfilter 24576 0
bridge 188416 1 br_netfilter
stp 16384 1 bridge
llc 16384 2 bridge,stp
overlay 131072 3
tda18271 53248 2
drxk 69632 2
nls_ascii 16384 1
nls_cp437 20480 1
vfat 20480 1
fat 86016 1 vfat
uas 28672 2
usb_storage 73728 2 uas
em28xx_alsa 24576 0
intel_rapl 24576 0
snd_pcm 114688 1 em28xx_alsa
snd_timer 36864 1 snd_pcm
snd 94208 3 em28xx_alsa,snd_timer,snd_pcm
soundcore 16384 1 snd
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
i915 1736704 0
kvm_intel 233472 0
dell_wmi 16384 0
kvm 757760 1 kvm_intel
dell_smbios 28672 1 dell_wmi
wmi_bmof 16384 0
dell_wmi_descriptor 16384 2 dell_wmi,dell_smbios
drm_kms_helper 208896 1 i915
sparse_keymap 16384 1 dell_wmi
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
dcdbas 16384 1 dell_smbios
ucsi_acpi 16384 0
efi_pstore 16384 0
drm 495616 3 drm_kms_helper,i915
ghash_clmulni_intel 16384 0
mei_me 45056 0
intel_cstate 16384 0
tpm_crb 16384 0
evdev 28672 0
intel_rapl_perf 16384 0
mei 118784 1 mei_me
efivars 20480 1 efi_pstore
typec_ucsi 36864 1 ucsi_acpi
i2c_algo_bit 16384 1 i915
sg 36864 0
idma64 20480 0
wmi 28672 4 dell_wmi,wmi_bmof,dell_smbios,dell_wmi_descriptor
typec 45056 1 typec_ucsi
pcc_cpufreq 16384 0
em28xx 94208 3 em28xx_rc,em28xx_alsa,em28xx_dvb
tpm_tis 16384 0
tpm_tis_core 20480 1 tpm_tis
tpm 65536 3 tpm_tis,tpm_crb,tpm_tis_core
tveeprom 24576 1 em28xx
video 49152 2 dell_wmi,i915
rng_core 16384 1 tpm
v4l2_common 16384 1 em28xx
button 20480 0
videodev 212992 1 v4l2_common
media 45056 2 videodev,em28xx
efivarfs 16384 1
ip_tables 28672 0
x_tables 45056 7 xt_conntrack,nft_compat,xt_tcpudp,ipt_MASQUERADE,xt_addrtype,xt_nat,ip_tables
autofs4 49152 3
ext4 745472 4
crc16 16384 1 ext4
mbcache 16384 1 ext4
jbd2 122880 1 ext4
crc32c_generic 16384 0
fscrypto 32768 1 ext4
ecb 16384 0
sd_mod 61440 10
mmc_block 45056 0
crc32c_intel 24576 9
ahci 40960 3
libahci 40960 1 ahci
xhci_pci 16384 0
xhci_hcd 266240 1 xhci_pci
libata 270336 2 libahci,ahci
i2c_designware_platform 16384 0
i2c_designware_core 20480 1 i2c_designware_platform
scsi_mod 249856 5 sd_mod,usb_storage,uas,libata,sg
aesni_intel 200704 1
r8169 90112 0
sdhci_pci 45056 0
cqhci 28672 1 sdhci_pci
aes_x86_64 20480 1 aesni_intel
sdhci 61440 1 sdhci_pci
crypto_simd 16384 1 aesni_intel
cryptd 28672 3 crypto_simd,ghash_clmulni_intel,aesni_intel
glue_helper 16384 1 aesni_intel
realtek 20480 0
libphy 77824 3 r8169,realtek
mmc_core 176128 4 sdhci,cqhci,mmc_block,sdhci_pci
fan 16384 0
intel_lpss_pci 20480 0
i2c_i801 28672 0
intel_lpss 16384 1 intel_lpss_pci
mfd_core 16384 1 intel_lpss
usb_common 16384 2 em28xx_alsa,usbcore
thermal 20480 0