diff --git a/.github/workflows/test-linux-asm.yaml b/.github/workflows/test-linux-asm.yaml
deleted file mode 100644
index 7ec18e9..0000000
--- a/.github/workflows/test-linux-asm.yaml
+++ /dev/null
@@ -1,33 +0,0 @@
-name: test prover linux build with asm optimizations
-
-on:
-  push:
-    branches:
-      - main
-      - develop
-  pull_request:
-    branches:
-      - main
-      - develop
-
-jobs:
-  test:
-    strategy:
-      matrix:
-        go-version: [ 1.18.x ]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Install Go
-        if: success()
-        uses: actions/setup-go@v3
-        with:
-          go-version: ${{ matrix.go-version }}
-          cache: false
-      - name: Checkout code
-        uses: actions/checkout@v2
-      - name: Print CPU Info
-        run: cat /proc/cpuinfo
-      - name: Run tests
-        # rapidsnark_asm build tag enables asm optimizations
-        run: cd tests && go test -tags rapidsnark_asm -v -covermode=count
-
diff --git a/prover/README.md b/prover/README.md
index c75f9ae..116642a 100644
--- a/prover/README.md
+++ b/prover/README.md
@@ -27,19 +27,20 @@ For the following architectures, pre-built vendored libraries are included:
 
 ## Performance optimization on x86_64 hardware
 
-Rapidsnark has optimization for recent x86_64 processors that gives ~2x speed boost, but older hardware may lack support for ADX and BMI2 instruction sets used.
+Rapidsnark has optimization for recent x86_64 processors that gives ~2x speed boost,
+but older hardware may lack support for ADX and BMI2 instruction sets used.
+If you have such hardware, you may want to disable assembly optimizations by
+specifying `rapidsnark_noasm` build tag. By default, optimizations are ON.
 
-MacOS build has it enabled. But for linux we disabled the optimization (at least for now, because GitHub Actions may use old hardware).
-
-To **enable** optimization on linux use `rapidsnark_asm` build tag:
+MacOS build there is no way to disable assembly optimizations with build tags.
+You need to build your custom library with disabled optimizations. And
+build the library with `dynamic` tag to use it instead of vendored one.
 
 ```shell
-go build -tags rapidsnark_asm
-go test -tags rapidsnark_asm
+go build -tags rapidsnark_noasm
+go test -tags rapidsnark_noasm
 ```
 
-In the future we may change default behaviour, so to force disable optimizations use `rapidsnark_noasm` build tag.
-
 ## Performance optimization on arm64 hardware
 We used NEON instruction set, and it is always enabled, so no build tags are needed.
 
diff --git a/prover/build_linux_amd64.go b/prover/build_linux_amd64.go
index eb7fe6b..86b74d2 100644
--- a/prover/build_linux_amd64.go
+++ b/prover/build_linux_amd64.go
@@ -1,7 +1,7 @@
-//go:build !dynamic && !rapidsnark_noasm && !rapidsnark_asm
+//go:build !dynamic && !rapidsnark_noasm
 
 package prover
 
 // #cgo CFLAGS: -DUSE_VENDORED_RAPIDSNARK
-// #cgo LDFLAGS: ${SRCDIR}/rapidsnark_vendor/librapidsnark-linux-amd64-noasm.a ${SRCDIR}/rapidsnark_vendor/libgmp-linux-amd64.a -lstdc++ -fopenmp
+// #cgo LDFLAGS: ${SRCDIR}/rapidsnark_vendor/librapidsnark-linux-amd64.a ${SRCDIR}/rapidsnark_vendor/libgmp-linux-amd64.a -lstdc++ -fopenmp
 import "C"
diff --git a/prover/build_linux_amd64_asm.go b/prover/build_linux_amd64_asm.go
deleted file mode 100644
index 27c30ff..0000000
--- a/prover/build_linux_amd64_asm.go
+++ /dev/null
@@ -1,7 +0,0 @@
-//go:build linux && amd64 && !dynamic && rapidsnark_asm && !rapidsnark_noasm
-
-package prover
-
-// #cgo CFLAGS: -DUSE_VENDORED_RAPIDSNARK
-// #cgo LDFLAGS: ${SRCDIR}/rapidsnark_vendor/librapidsnark-linux-amd64.a ${SRCDIR}/rapidsnark_vendor/libgmp-linux-amd64.a -lstdc++ -fopenmp
-import "C"
diff --git a/prover/build_linux_amd64_noasm.go b/prover/build_linux_amd64_noasm.go
index e85d088..761e699 100644
--- a/prover/build_linux_amd64_noasm.go
+++ b/prover/build_linux_amd64_noasm.go
@@ -1,4 +1,4 @@
-//go:build linux && amd64 && !dynamic && rapidsnark_noasm && !rapidsnark_asm
+//go:build linux && amd64 && !dynamic && rapidsnark_noasm
 
 package prover