SmartByte v3.1.995 Bug? Disabling CinemaStream Causes High CPU by SmartByte Telemetry Service

I still don't know if this high CPU problem was caused by a bug in SmartByte Drivers and Services v3.1.995 or if SmartByte was corrupted when SupportAssist installed this update on 28-Oct-2021, but I finally solved the problem by uninstalling SmartByte from my system.

Before uninstalling I tried disabling the SmartByte Analytics Service and SmartByte Network Service at Start | Windows Administrative Tools | Services [note that I left the Rivet AP Selector Service (StartType = Automatic) and Rivet Dynamic Bandwidth Management (StartType = Manual) services alone], and that allowed me to finally turn OFF SmartByte v3.1.995 in the CinemaStrean GUI without causing excessive (~ 30%) CPU consumption by the SmartByte Telemetry process. After a re-boot, however, Task Manager showed that the SmartByte Telemetry (SmartByteTelemetry.exe) and RivetAPS (RAPS.exe) executables located in C:\Program Files\Rivet Networks\SmartByte were still loading at Windows startup, even though CPU consumption for both these processes was low.

That wasn't satisfactory to me so I decided to go ahead and remove SmartByte from my system. I uninstalled the SmartByte v3.1.1001.0 UWP app from Settings | Apps | Apps and Features, and then uninstalled the SmartByte Drivers and Services v3.1.995 (listed in Control Panel | Programs | Programs and Features) using Revo Uninstaller Free Portable in Aggressive mode to remove the stray registry entries and folders/files left behind by the built-in uninstaller. After a re-boot everything seems fine and I can't see any SmartByte / Rivet services or processes running on my Inspiron 5584.
-----------
64-bit Win 10 Pro v21H1 build 19043.1288 * Firefox v94.0.1 * Microsoft Defender v.4.18.2110.6-1.1.18700.4 * Malwarebytes Premium v4.4.10.144-1.0.1499 * Dell SupportAssist v3.10.3.3 * Dell SupportAssist Remediation v5.5.0.16041 * Dell Update for Windows 10 v4.4.0 * Revo Uninstaller Free Portable v2.3.5
Dell Inspiron 15 5584, Intel i5-8265U CPU, 8 GB RAM, 256 GB Toshiba KBG40ZNS256G NVMe SSD, Intel UHD Graphics 620

I'm having very slow internet speed on my Dell Vostro 7500. Right now I'm getting 4.38mbps (download).
I have an HP laptop sitting right beside it and it's getting 52.69mbps. Other devices are getting roughly the same as this HP.
I Googled about slow internet speed on one computer in the network and found many people talking about Smartbyte. Thank you for your excellent, detailed explanation of how you disabled it. I am going to try and do that next. I expect that the Dell Service Support tool will try to add it back but I'll solve that problem when I get to it. Thanks again.

Exactly same issue happening with me. Following lmacri's techniques.