Just to be sure, I checked the operation of VST3 in TuneBrowser and found nothing unusual. Since you mentioned “all the VSTs”, it seems that the operating environment of your PC may be affected, sorry, but I don’t know the details.
すべてのVST3プラグインの動作が遅くなったとのことです. なにかおわかりになる方はおられないでしょうか? > ALL