Is my Pi4 broken?

[ArseN]

... or am i a stupid person? (hope this!)

TL;DR = i never get more than 20-30 fps in menus, unplayable

i play with the 4GB Pi4 on an old 2016 4K Samsung TV.

I used my whole weekend to get my System working from 4k down to 1080p/60....
i thoungt that was my problem with the fps. but no :(

i used this all:
(/opt/vc/bin/tvservice -m CEA
/opt/vc/bin/tvservice -m DMT
/opt/vc/bin/tvservice -s)

hdmi_force_hotplug=1
hdmi_drive=2
hdmi_group=2
hdmi_mode=XX (div.)
hdmi_max_pixel_freq:0=200000000
hdmi_max_pixel_freq:1=200000000
forcing with 1600x900 in the config.

At the end i got my 1080p/60 and sound via HDMI.
I even tried to overclock ist with:
over_voltage=6
arm_freq=2000

and... nope. retropie options i got 30-60fps.
ingame 10-20 (N64)

is this normal, am i am just a plain stupid man or is my pi defect?

Thanks for help :)
Markus

arg i cant delet this post sorry:

Pi Model or other hardware: 4B
Power Supply used: the official one
RetroPie Version Used: 4.6
Built From: Pre-made images, md5: 9154d998cba5219ddf23de46d8845f6c
USB Devices connected: my ps4 controller
Controller used: PS4
Error messages received: nothing, but i got native 4K to my tv / low fps, sound problems because of it.
Log found in /dev/shm/runcommand.log (if relevant): /
Guide used: (Mention if you followed a guide), all i got from google.
Emulator: (Name of emulator - if applicable) : all N64-emus

[Thorr69]

Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first