WiFi en Ubuntu 19.04 es increíblemente lento en comparación con Windows 10

WiFi en Ubuntu 19.04 es increíblemente lento en comparación con Windows 10

Acabo de instalar Ubuntu 19.04 en una partición de mi disco duro y estoy realizando un arranque dual con Windows 10. Realicé pruebas de velocidad de Internet en ambos sistemas operativos y obtuve una velocidad de descarga de 104 MB/s en Windows 10. Sin embargo, en Ubuntu (versión 19.04) Sólo obtengo 4mb/s. No estoy seguro de si se trata de un problema de controlador o de un error del propio Ubuntu. ¡Ayudame por favor!

Información de la tarjeta WiFi: lspci-

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15d0
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 15d1
00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge
00:01.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15d3
00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge
00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15db
00:08.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 15dc
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 61)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e8
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15e9
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ea
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15eb
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ec
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ed
00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ee
00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 15ef
01:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43d5 (rev 01)
01:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43c8 (rev 01)
01:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c6 (rev 01)
02:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
02:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
02:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
02:06.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
02:07.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8812AE 802.11ac PCIe Wireless Network Adapter (rev 01)
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15)
08:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] (rev c8)
08:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 15de
08:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Device 15df
08:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e0
08:00.4 USB controller: Advanced Micro Devices, Inc. [AMD] Device 15e1
08:00.6 Audio device: Advanced Micro Devices, Inc. [AMD] Device 15e3
09:00.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 61)

sudo lshw -red de clase-

*-network                 
       description: Wireless interface
       product: RTL8812AE 802.11ac PCIe Wireless Network Adapter
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlp4s0
       version: 01
       serial: 18:31:bf:c5:d8:7d
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8821ae driverversion=5.0.0-15-generic firmware=N/A ip=192.168.1.5 latency=0 link=yes multicast=yes wireless=IEEE 802.11
       resources: irq:57 ioport:e000(size=256) memory:fcd00000-fcd03fff
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:07:00.0
       logical name: enp7s0
       version: 15
       serial: 40:b0:76:42:a8:45
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=half firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:35 ioport:d000(size=256) memory:fcc04000-fcc04fff memory:fcc00000-fcc03fff

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