Fmax Improvment

Hello Tricky, thanks a lot for your idea. I think I already got your point and already implemented it into my code as below. It did improve Fmax a lot(60mhz).

			HelperGrayBar <= (others=>'0'); 	
			if Setting_Pixel_un < (Setting_TotPixel_un/16) then
				HelperGrayBar(0) <= '1'; 
			end if;
			
			if Setting_Pixel_un < (Setting_TotPixel_un/8) then
				HelperGrayBar(1) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/8)  + (Setting_TotPixel_un/16)) then
				HelperGrayBar(2) <= '1'; 
			end if;
			
			if Setting_Pixel_un < (Setting_TotPixel_un/4) then
				HelperGrayBar(3) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/4)) + ((Setting_TotPixel_un/16)) then
				HelperGrayBar(4) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/4)) + ((Setting_TotPixel_un/8)) then
				HelperGrayBar(5) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) - (Setting_TotPixel_un/16)) then
				HelperGrayBar(6) <= '1'; 
			end if;
			
			if Setting_Pixel_un < (Setting_TotPixel_un/2) then
				HelperGrayBar(7) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/16)) then
				HelperGrayBar(8) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/8)) then
				HelperGrayBar(9) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/8) + (Setting_TotPixel_un/16)) then
				HelperGrayBar(10) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/4)) then
				HelperGrayBar(11) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/4) + (Setting_TotPixel_un/16)) then
				HelperGrayBar(12) <= '1'; 
			end if;
			
			if Setting_Pixel_un < ((Setting_TotPixel_un/2) + (Setting_TotPixel_un/4) + (Setting_TotPixel_un/8)) then
				HelperGrayBar(13) <= '1'; 
			end if;
			
			if Setting_Pixel_un < (Setting_TotPixel_un - (Setting_TotPixel_un/16)) then
				HelperGrayBar(14) <= '1'; 
			end if;
				if HelperGrayBar(0) = '1' then  --black
					Out_Data <= GrayColor;
				end if;
				
				if HelperGrayBar(1 downto 0) = "10" then  --gray level 1
					Out_Data <= GrayColor + x"100100100";
				end if;
				
				if HelperGrayBar(2 downto 1) = "10" then  --gray level 2
					Out_Data <= GrayColor + x"200200200";
				end if;
				
				if HelperGrayBar(3 downto 2) = "10" then  --gray level 3
					Out_Data <= GrayColor + x"300300300";
				end if;
				
				if HelperGrayBar(4 downto 3) = "10" then  --gray level 4
					Out_Data <= GrayColor + x"400400400";
				end if;
				
				if HelperGrayBar(5 downto 4) = "10" then  --gray level 5
					Out_Data <= GrayColor + x"500500500";
				end if;
				
				if HelperGrayBar(6 downto 5) = "10" then  --gray level 6
					Out_Data <= GrayColor + x"600600600";
				end if;
				
				if HelperGrayBar(7 downto 6) = "10" then  --gray level 7
					Out_Data <= GrayColor + x"700700700";
				end if;
				
				if HelperGrayBar(8 downto 7) = "10" then  --gray level 8
					Out_Data <= GrayColor + x"800800800";
				end if;
				
				if HelperGrayBar(9 downto 8) = "10" then  --gray level 9
					Out_Data <= GrayColor + x"900900900";
				end if;
				
				if HelperGrayBar(10 downto 9) = "10" then  --gray level 10
					Out_Data <= GrayColor + x"A00A00A00";
				end if;
				
				if HelperGrayBar(11 downto 10) = "10" then  --gray level 11
					Out_Data <= GrayColor + x"B00B00B00";
				end if;
				
				if HelperGrayBar(12 downto 11) = "10" then  --gray level 12
					Out_Data <= GrayColor + x"C00C00C00";
				end if;
				
				if HelperGrayBar(13 downto 12) = "10" then  --gray level 13
					Out_Data <= GrayColor + x"D00D00D00";
				end if;
				
				if HelperGrayBar(14 downto 13) = "10" then  --gray level 14
					Out_Data <= GrayColor + x"E00E00E00";
				end if;
				
				if HelperGrayBar(14) = '0' then  --gray level 15
					Out_Data <= GrayColor + x"F00F00F00";
				end if;