Enable performance-* checks in clang-tidy

.clang-tidy

@@ -2,8 +2,7 @@
 # libomp-dev installed (the LLVM implementation of OpenMP)
 
 # TODO: add the following check families:
-# - performance-*
 # - bugprone-*
 # - cppcoreguidelines-
 
-Checks: 'modernize-*,-modernize-use-trailing-return-type,-clang-diagnostic-unqualified-std-cast-call'
+Checks: 'performance-*,modernize-*,-modernize-use-trailing-return-type,-clang-diagnostic-unqualified-std-cast-call'