'1.1 Remove Features:'
Only keep features you will really need.
Removing unnecessary features will change the signature and speed up the cheat. Also, you will maybe fix crashes without knowing it.

'Do not remove the Checkboxes only', also remove the Functions. Search with "CTRL + F" for relateable functions you do not need.
For example, if you want to remove Knifebot, Remove the Knifebot.cpp and Knifebot.h. Also remove the Saving and Loading Convars in Settings.cpp and Settings.h.
Stuff like this "#define CVAR_KNIFEBOT_ACTIVE "knf_Active" or this "extern bool knf_Active;".
Of course, you have to remove the Checkboxes in Client.cpp and "class CKnifebot" in Client.h too.

If you want to remove features like Damage Indicator you also have to remove all the Stuff in Esp.cpp, Client.cpp and Settings.cpp/h. Search with CTRL + F for "DamageIndicator" and remove everything you can find.
For example this stuff:
'"void CEsp::DrawDamageIndicator()...." and this "std::vector<DamageIndicator_t> DamageIndicator;"'
etc.