Computer Configuration > Administrative Templates > Microsoft Edge > Content settings
Both
HKLM\Software\Policies\Microsoft\Edge
Allows you to set whether Microsoft Edge will run the v8 JavaScript engine with JIT (Just In Time) compiler enabled or not. Disabling the JavaScript JIT will mean that Microsoft Edge may render web content more slowly, and may also disable parts of JavaScript including WebAssembly. Disabling the JavaScript JIT may allow Microsoft Edge to render web content in a more secure configuration. This policy can be overridden for specific URL patterns using the 'JavaScriptJitAllowedForSites' (Allow JavaScript to use JIT on these sites) and 'JavaScriptJitBlockedForSites' (Block JavaScript from using JIT on these sites) policies. If you don't configure this policy, JavaScript JIT is enabled. Policy options mapping: * AllowJavaScriptJit (1) = Allow any site to run JavaScript JIT * BlockJavaScriptJit (2) = Do not allow any site to run JavaScript JIT Use the preceding information when configuring this policy.