performance

  1. A

    Does Parallels Toolbox affect gaming performance on Windows 11?

    I'm using Parallels Toolbox for Windows on a Windows 11 system and have noticed that several background tools remain active while gaming. I was wondering if any Toolbox features can affect CPU, RAM, or disk usage enough to reduce game performance or cause occasional stuttering. Has anyone...
  2. F

    Bad performance in Windows 11 23H2 under Parallels 20 & 26 with August cumulative update

    I still use Windows 11 23 H2 as virtual machine because 3D performance is better than with 24H2. However with the Cumulative windows update from august, the performance in Passmark Performance test 11.1 drops significantly from 8850 to 5160! 2D graphics are down from 1385 to 682! How can we...
  3. H

    Very slow Win 11 VM with Creedence Cryptex dmg on desktop

    I have a 2019 iMac with Intel Core i5 that was running a Windows 11 VM with single application. The performance was fine and I was satisfied with this setup for years. I recently updated to the latest OS that my Mac supports, Sequoia 15.5. My VM got incredibly slow and suddenly there are...
  4. Y

    Windows 11 ARM VM takes 100% cpu (4cores 400% in mac) even rebooting and ready-for-login state

    Windows 11 ARM VM takes 100% cpu (4cores 400% in mac) even during windows rebooting and ready-for-login state. After login the cpu usage is the still high even no any app started. The detai list of task manager show no process using much CPU, but performance tab shows 58% cpu usage overall in...
  5. B

    Extreme Battery and CPU Usage with Parallels

    Hello, I've noticed extreme CPU and battery strain when Parallels is running. In Parallels Windows, I was only using a simple text editing program and no games or other high-performance applications. Despite this, my M2 MacBook Air gets very hot, and the battery drains incredibly fast, about 1%...
  6. M

    Windows 11 Task Manager running at 60% continuously since Version 20.4.0 (55980) update

    Operating system: Mac OS Hardware: MacBook M3 64GB ram VM: Windows 11 Version 10.0.22631 Build 22631 Since the last update to Parallels Version 20.4.0 (55980) windows virtual machine shows Task Manager running continuaously at 60%.
  7. R

    Windows 11 after July 25 update - pegging performance cores, keeping fans running

    Hi - Macbook Pro M3, latest Sequoia 15.5, latest Parallels build, just loaded Windows 23H2 July update. Everything seemed to work fine - but I noticed that the machine was still pegged (fan running, temp high). I rebooted the mac, booted back into Parallels/Win11, and it ended up with the...
  8. Bertrand

    Third party app insanely slow on Windows11 Pro (24H2) on Mac Mini M2 Pro

    Hello, I tried to run the CorelDRAW graphic suite 2025 on my Mac Mini M2 Pro. in a Windows11 Pro VM handled by Parallels Desktop Pro macOS version: 15.4.1 Parallels Desktop version: 20.3.0 (55895) Windows11 version: 24H2 (bnuild #26120.3964) CorelDRAW version: 26.0.0.101 - March 2025 Release...
  9. B

    native hashcat performance >60% faster than VM using OpenCL

    I don't know why, but hashcat benchmark is >60% faster native using OpenCL than in the Linux VM using OpenCL. Does anyone know why or can offer suggestions on how to close this gap?
  10. J

    Is anyone noticing slowness on Outlook in the Parallels VM?

    I have a new laptop. It's a MacBook Air M4. I have parallels Version 20.3.0 (55895). The VM itself is the old one that i had with the M1 Air machine. Since the changeover, i've noticed that most of my actions in outlook take 5 seconds or so to commence, like it's talking to the Cloud or...
  11. D

    [resolved] Strange performance of windows 11 on the latest version 20.3.0

    After the latest update to version 20.3.0 my windows 11 began to behave strangely: when selecting multiple lines in excel, or when selecting multiple icons on the desktop hangs for 1-2 seconds, it extremely interferes with full-fledged work. I work on mac mini m4pro, but absolutely the same...
  12. F

    Internet speed is very slow in Win11 VM

    Dear Team, I am able to open all websites in Apple Safari however the same in the Google chrome browser inside the Windows VM takes a considerable amount of time. I am running all this on a Macbook M4 Max 128 GB RAM. Please let me know on how to get similar speed inside the windows VM on Mac...
  13. L

    Parallels 20.2.2 (55879) running Windows 11 Pro has become impossibly slow (M4 Pro)

    Literally since yesterday, Windows 11 has started running impossibly slow. Unusable. Software is either hanging or crashing. Is there a known issue with the latest Parallels? Have any other users had this happen? Windows has 16GB RAM and 8 CPUs, so I don't see why performance should be a problem.
  14. C

    Parallels 20 - Solidworks unusable due to graphics performance

    Parallels Desktop 20.2.0 VM Windows 11 Pro (multiple versions tested) Apple M1 Max, OS Sonoma. After upgrading to Parallels Desktop 20, Solidworks graphics performance in "Shaded with Edges" mode takes a massive hit, becoming essentially unusable. Models/assemblies rotate and zoom fine in...
  15. D

    Performance on Macbook Pro Intel vs Apple Silicon

    I'm currently running Parallels on my Mackbook Pro 16 inch 32 GB Ram Intel 8-Core i9. Recently I keep having issues when I run Windows via Parallels; laggy performance all around, including mac apps (text as I write this post in Chrome (mac) is lagging & missing keystrokes). I'm wondering if...
  16. Z

    Why is OpenSuse update so slow?

    Same machine - 16 inch M2. VMware Fusion runs OpenSuse Tumbleweed updates fast. Parallels not so much. Seems network access is slow. Anyone else seen this? Same network locally, same WiFi.
  17. T

    MAC M PROCESSOR AND WINDOWS 11 APPLICATION RUNS VERY SLOWLY AND HANGS

    Dear friends, I have the following problem with Paralles 20 and Windows 11, on which I launch a simple industry application for managing a company, which was strictly created for Windows users. My computer is a Mac with an M processor. Namely, the application launched after installing SQL, BUT...
  18. F

    Post your Benchmark Passmark Performance Test 11 on Win Pro on your Mac

    Mention which Mac you use. Mine is a MacBook Pro M2 Pro 16" with 16GB RAM, 8 GB allocated to Parallels Pro 20. Score 4774. (Much better in graphics than Fusion Pro) I am curious which results an M4 Pro or Max can obtain. Thank you very much
  19. S

    XProtect stalls Parallels vm since last macos update to Sequoia 15.1.1

    I habe Mac Book Pro with Apple m2 Max CPU Yesterday doing my all day Work i wondered that my Windows 11 vm was unresponsive for 1-3 minutes during doing my normal work. to get the reason i startet Activity Monitor on my Mac and saw XProtectService unsing 800% and diskimagesiod using 300% CPU. It...
  20. R

    Coherence impacting performance?

    for two days I have been running parallels 20 in Coherence mode, and I am noticing quite a bit performance hit, is this normal? 1. stuttering when moving application windows around on the screen 2. Lag and stuttering when scrolling in tables when working in Arcgis. anyone else notice a...
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