Not totally agree with last answers. Just updated my system - from old i7-2600k/16Gb/Win7 with Studio One 4.6 to this configuration:
CPU: Intel Core i7-10700F
MB: ASUS ROG STRIX B460-F GAMING
RAM: 32Gb @ 2933 MHz
Main SSD: Samsung 970 EVO PLUS 500G (NVMe)
Add. SSD: Samsung 860 EVO 250G (SATA)
Audio: Focusrite Scarlett 2i4 (gen 2)
Windows 10 Pro with all last updates up to 25.08.21.
Two DAWs: Studio One Pro 5.3 + Studio One Pro 4.6
Initilally I also thought V5 has worst performance in comparement to V4 because part of my old projects (worked w/o drops on old slow system!) had dropouts during playback. But after I did those improvements:
https://support.presonus.com/hc/en-us/articles/360025279231-Optimizing-Your-Computer-for-Audio-Windows-10
I founded that v4.6 and v5.3 on my new system have a similar cpu load behavior. Main improvemets for i7-10xxx, I think, were:
- Enabling High Performance Mode in Power Settings
- Switching Processor Scheduling to Background Services.
Those steps removed all dropouts and maked work with S1 v5 much more comfortable.
But I decided to compare preformance between v4.6 and v5.3 on my new system with all optimizations. Same project (just 10 tracks, 6 buses and Lurssen Mastering Console Plugin at Master Bus - real CPU-hog) and identical ASIO buffer and dropout ptotection settings. Below you can see some screenshots made during playback same loop (note v4.6 is first and has light icon at window title, v5.3 - second with dark icon) which show that performance meters are very similar for my case.
Settings and latency measurements (same for 4.6 and 5.3):
UPD. Maked more useful crop images: