Dota 2 lagging
 

Hello, I have Debian GNU/Linux 11 bullseye (x86-64) Cinnamon version 4.8.6 installed on my Lenovo ideapad 110 laptop. I have kernel 5.10.0-9-amd64 installed.
Processor Intel© Core™ i3-7100U CPU @ 2.40GHz × 2
Memory 7.7 GiB
Built-in Graphics Intel Corporation HD Graphics 620
Graphics card Radeon 2 GiB

03:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon 520 Mobile] (rev 83)
Subsystem: Lenovo Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430 / Radeon 520 Mobile]
Flags: bus master, fast devsel, latency 0, IRQ 128, IOMMU group 11
Memory at 90000000 (64-bit, prefetchable) [size=256M]
Memory at b1100000 (64-bit, non-prefetchable) [size=256K]
I/O ports at 3000 [size=256]
Expansion ROM at b1140000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
Capabilities: [150] Advanced Error Reporting
Capabilities: [270] Secondary PCI Express

I have the lowest settings for video and a fast internet connection, but Dota 2 is lagging hard. How can I fix this?

bump

It looks like you have a discrete gpu on that laptop. Are you sure you are using the dedicated card while playing and not the intel build-in?

No, I am not sure. Didn't even thought about this. How can I check?