why compare feature values between two tables take too much time ?

Question

I work on sql server 2019 i face issue when compare feature values between two tables ,
it take too long time to display result
time that take it 5 minute .
total rows on every table i compare it is 13 milion rows

query is

select o.RecomendationId,case when CONVERT(VARCHAR(32), HashBytes('SHA2_256',f1.DiffFeatures),2) =CONVERT(VARCHAR(32), HashBytes('SHA2_256',o.DiffFeatures),2) then 0 else 1 end as DiffValues  into ExtractReports.dbo.TechnologyEqualOriRecomended from ExtractReports.dbo.TechnologyOriginalFeaturesEqual o with(nolock)  
inner join ExtractReports.dbo.TechnologyRecomendedFeaturesEqual f1 with(nolock) on f1.RecomendationId=o.RecomendationId ---and f1.DiffFeatures=o.DiffFeatures  
group by o.RecomendationId,f1.DiffFeatures,o.DiffFeatures  

ddl structure

CREATE TABLE [dbo].[TechnologyOriginalFeaturesEqual](  
 [RecomendationId] [int] NOT NULL,  
 [DiffFeatures] [varchar](500) NULL  
) ON [PRIMARY]  
  
GO  
  
SET ANSI_PADDING OFF  
GO  

CREATE TABLE [dbo].[TechnologyRecomendedFeaturesEqual](  
 [RecomendationId] [int] NOT NULL,  
 [DiffFeatures] [varchar](500) NULL  
) ON [PRIMARY]  
  
GO  
  
SET ANSI_PADDING OFF  
GO  

execution baln as below

https://www.brentozar.com/pastetheplan/?id=rJzXglKgo  

so what i do to enhance performance to run faster