I can't use my main AMD gpu

Hello, I currently don’t have any GPU driver but then I was using my AMD GPU driver but I get low fps than windows and I reinstalled my Manjaro and I didn’t downloaded any GPU driver before asking you. What should I do.

Have you tried mhwd to find one for you?
https://wiki.manjaro.org/index.php/Configure_Graphics_Cards

It says already installed video-linux should I remove it ?

No.

Let’s check your system information instead.
inxi -Fazy

System:
Kernel: 5.13.13-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64
root=UUID=531669c8-e426-4eab-af10-916ccff27df8 rw quiet apparmor=1
security=apparmor udev.log_priority=3
Desktop: Xfce 4.16.0 tk: Gtk 3.24.29 info: xfce4-panel wm: xfwm 4.16.1 vt: 7
dm: LightDM 1.30.0 Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: Dell product: Inspiron 15-3567 v: N/A serial:
Chassis: type: 9 serial:
Mobo: Dell model: 0D53F5 v: A00 serial: UEFI: Dell v: 2.9.0
date: 01/17/2019
Battery:
ID-1: BAT0 charge: 3.6 Wh (100.0%) condition: 3.6/41.4 Wh (8.8%) volts: 16.6
min: 14.8 model: LGC-LGC2.80 DELL 991XP75 type: Li-poly serial:
status: Full
CPU:
Info: Dual Core model: Intel Core i5-7200U bits: 64 type: MT MCP
arch: Amber/Kaby Lake note: check family: 6 model-id: 8E (142) stepping: 9
microcode: EA cache: L2: 3 MiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 21607
Speed: 1248 MHz min/max: 400/3100 MHz Core speeds (MHz): 1: 1248 2: 600
3: 600 4: 678
Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds mitigation: Microcode
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel HD Graphics 620 vendor: Dell driver: i915 v: kernel
bus-ID: 00:02.0 chip-ID: 8086:5916 class-ID: 0300
Device-2: AMD Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon
520 Mobile]
vendor: Dell driver: radeon v: kernel alternate: amdgpu bus-ID: 01:00.0
chip-ID: 1002:6660 class-ID: 0380
Device-3: Realtek Integrated_Webcam_HD type: USB driver: uvcvideo
bus-ID: 1-5:3 chip-ID: 0bda:5769 class-ID: 0e02 serial:
Display: x11 server: X.Org 1.20.13 compositor: xfwm4 v: 4.16.1 driver:
loaded: ati,modesetting,radeon alternate: fbdev,vesa display-ID: :0.0
screens: 1
Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0")
s-diag: 414mm (16.3")
Monitor-1: eDP-1 res: 1366x768 hz: 60 dpi: 101 size: 344x194mm (13.5x7.6")
diag: 395mm (15.5")
OpenGL: renderer: Mesa Intel HD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.2.1
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Dell driver: snd_hda_intel
v: kernel alternate: snd_soc_skl bus-ID: 00:1f.3 chip-ID: 8086:9d71
class-ID: 0403
Sound Server-1: ALSA v: k5.13.13-1-MANJARO running: yes
Sound Server-2: JACK v: 1.9.19 running: no
Sound Server-3: PulseAudio v: 15.0 running: yes
Sound Server-4: PipeWire v: 0.3.34 running: yes
Network:
Device-1: Intel Wireless 3165 driver: iwlwifi v: kernel port: e000
bus-ID: 02:00.0 chip-ID: 8086:3165 class-ID: 0280
IF: wlp2s0 state: up mac:
Device-2: Realtek RTL810xE PCI Express Fast Ethernet vendor: Dell
driver: r8169 v: kernel port: d000 bus-ID: 03:00.0 chip-ID: 10ec:8136
class-ID: 0200
IF: enp3s0 state: down mac:
Bluetooth:
Device-1: Intel Bluetooth wireless interface type: USB driver: btusb v: 0.8
bus-ID: 1-8:5 chip-ID: 8087:0a2a class-ID: e001
Report: rfkill ID: hci0 rfk-id: 1 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: see --recommends
Drives:
Local Storage: total: 223.58 GiB used: 42.88 GiB (19.2%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/sda maj-min: 8:0 vendor: Western Digital
model: WDS240G2G0A-00JH30 size: 223.58 GiB block-size: physical: 512 B
logical: 512 B speed: 6.0 Gb/s type: SSD serial: rev: 0000
scheme: GPT
Partition:
ID-1: / raw-size: 223.28 GiB size: 218.72 GiB (97.96%)
used: 42.88 GiB (19.6%) fs: ext4 dev: /dev/sda2 maj-min: 8:2
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 288 KiB (0.1%) fs: vfat dev: /dev/sda1 maj-min: 8:1
Swap:
Alert: No swap data was found.
Sensors:
System Temperatures: cpu: 49.0 C mobo: 47.0 C gpu: radeon temp: 38.0 C
Fan Speeds (RPM): cpu: 0
Info:
Processes: 233 Uptime: 1h 49m wakeups: 1 Memory: 3.71 GiB
used: 2.99 GiB (80.8%) Init: systemd v: 248 tool: systemctl Compilers:
gcc: 11.1.0 clang: 12.0.1 Packages: 1119 pacman: 1109 lib: 332 flatpak: 0
snap: 10 Shell: Bash v: 5.1.8 running-in: xfce4-terminal inxi: 3.3.06

Since you have a hybrid Intel/AMD GPU, that page should be relevant:
https://wiki.archlinux.org/title/PRIME

I can’t go on much further than that since i’m not familiar with hybrid GPUs.

Thanks a lot. I’ll look.